How to: Add Aftermarket Subwoofer and Amp to Factory Stereo.

A quick demonstration of how I added a 12 inch subwoofer to my factory stereo allowing me to maintain steering wheel controls and other Factory features while enhancing my sound. Work performed on 2013 Hyundai Sonata Limited with Infinity Factory Stereo.
Boss Audio Amp Wiring Kit: amzn.to/3wkKHGB
Dual Amplifier: amzn.to/3rPxRNe
12" Woofer Box: amzn.to/2R0QO2E
Fuse Tap "Add a Circuit": amzn.to/39zUz5I
Wire Taps: amzn.to/3rPyp5K
As an Amazon Associate I earn from qualifying purchases made using my amazon links.
Disclaimer: The information presented is not intended as professional advice. JCT FIX IT assumes no liability for any damage to property or physical injury as a result of using information contained in this video. Due to constraints outside the control of JCT FIX IT there will be no warranties expressed or implied given in regards to the information contained in this video. Do work at your own risk. Any property damages or injuries incurred via use of information from this video are the responsibility of the viewer and not JCT FIX IT.

[@marcfrancois6913]

I have deadass watched over 20 videos to find the answers to my questions and you somehow managed to answer them in a 6 minute video. Thank you very much sir

[@JCTFIXIT]

That's awesome. Glad the video was helpful for you!

[@mesowinss]

Deff from ny

[@various2001]

What he said

[@djkrownzpets6203]

Seriously though!!! I would very much like a more in depth video on how he tapped into the factory sub and hooked it into is amp. Because that’s what I want to do since I have a factory radio

[@codycampbell1147]

I still can't find out how to get power wire through the fire wall on my 2001 malibu

[@Metalbass1979]

The add a circuit fuse thing is brilliant and I never knew they existed. Thank you very much for posting this.

[@craydenbradley7877]

fhvh

[@mhowell3740]

One of the best simple straight to the point without missing a step videos on adding sub's to the sonata speaker inputs best idea

[@JCTFIXIT]

Thanks! Glad you liked it.

[@juniorchicas5337]

I’ve been trying to figure out how to run my remote power without having to tap into my radio or my cigarette lighter and after watching 20+ videos I finally found the solution thank you good sir

[@Nini_V89]

I just learned a lot, I've done connections with aftermarket stereos but not modern/present day stereos because I didn't know how to connect a sound system to them and you just taught me everything I need to know in this vid. 🙌🏽🙌🏽👍🏽😁

[@ChaseKelleh]

I'm just getting into car audio and was really not looking forward to pulling out my stock radio just to tap into a wire for the remote wire. That fuse tap is a life saver! Thanks for sharing

[@afalz06]

it worked for you?

[@dickieradd]

You wouldn't need a fuse tap. All you'd do is add the remote wire into the left side of a fuse in the fuse box

[@joseelgallovelasquez7932]

I was about to drill a hole into the dash to install a on/off switch but with that add circuit!!! Man I don’t have to deal with that! Thanks for the good pointers man!

[@danielrodriguez9644]

I have a challenger that had the opening for a sub and the wire so I added a 8 inch sub it fit perfectly and put a amp on the back of the seat it worked out perfectly and I used your video to figure out the high output level. Looked thur like 6 videos and yours was exactly what I needed!!

[@JCTFIXIT]

Glad it helped you. Thanks for the comments.

[@beenjammin5828]

Liked and subscribed 😎 I knew there was a way to do this 🔥🔥🔥 Thanks for the time you took to share 🍻

[@JCTFIXIT]

Glad it helped you!

[@dappergenesis822]

This video was more informative then basically every other one I watched. Thanks for the video!

[@JCTFIXIT]

Glad you found it helpful

[@isaakrempel2893]

Just watched so many videos already and finally found the one that actually makes the most sense 👌

[@JCTFIXIT]

Sweet! Glad it was helpful!

[@themindvibez9705]

This video made a whole lot of sense, this video is the best video I’ve seen hands down an official DYI

[@JCTFIXIT]

Thanks! Glad you liked it!

[@Quisii]

Straight and to the point . Thanks!

[@JCTFIXIT]

Thanks for watching!

[@CDashLo]

This is the most informative video with the least amount of time possibly needed ever made to get you right.

[@JCTFIXIT]

1 take magic.

[@FastlaneHero]

Great video man!!!! Definitely gonna help me thru my process!

[@Zetrisy]

this was the most simple, not autistic video / explanation on yt, watched 20 videos atleast to gain knowledge , so thank you sir, kindly 💖

[@JCTFIXIT]

Thanks! Glad that you found my simplistic style helpful.

[@kylanmarley426]

you prolly dont care but does anyone know of a tool to log back into an Instagram account? I stupidly forgot the login password. I love any tips you can offer me

[@shanegrayson2507]

@Kylan Marley Instablaster :)

[@kylanmarley426]

@Shane Grayson i really appreciate your reply. I got to the site on google and Im in the hacking process atm. Looks like it's gonna take a while so I will get back to you later when my account password hopefully is recovered.

[@kylanmarley426]

@Shane Grayson It did the trick and I finally got access to my account again. I am so happy:D Thank you so much, you really help me out!

[@JuanRuiz-jv7gb]

Three years after you made this video and still helping people!... You answered my questions in less than 7 minutes 😅 Thank you sir!

[@JCTFIXIT]

Thank you!

[@viakion2125]

thanks so much. will be coming back to this video lots the next few weeks while i wire in my pair of 800watt subs

[@tammybadass4055]

Great video...appreciate how you explain in depth. Helps me alot!

[@dentpulla]

Great freaking video. Short and complete. Took the whole blah blah blah that other ppl do and went right to the meat and potatoes. Bravo and thank you

[@SifuBang]

Dude! You have an infinite baffle 8inch dual coil on the deck! You can swap out the 8 and get it amplified. Might now be as loud as ported but will save all your trunk space with better sq . Great vid

[@ddavis6616]

I’m glad I found this vid , I have a sonata and I want to do this until I can find aftermarket stereo and install kit , thanks man

[@JCTFIXIT]

Glad it's helpful for you! Merry Christmas!

[@Lightsout89]

Like us all on here where obviously specifically looking for easy step by step no bullshit way of doing just this and like many have said your the only one who's made it so easy to understand and just got to the point and its actually stupid easy true so thanks brother thanks for the video and im sure you've helped so many guys just like My self that couldn't find shit on this subject well nothing straight forward anyway so yea cheers mate take care

[@JCTFIXIT]

I appreciate it.

[@Az-elite]

That circuit adder is the cleanest thing ive seen about adding an amp and sub

[@JCTFIXIT]

Sure is handy. A lot of amps are coming out that will auto turn on and off based on signal detection as well thus eliminating the need for the remote wire.

[@lilnutsack4122]

Best video I’ve seen will update when I finish install

[@JCTFIXIT]

Let's us know!

[@DavidSmith-tj4dk]

Lots of great information. Thanks

[@merkclan_1880]

you are a legend bro, the most helpful video i've seen

[@JCTFIXIT]

Thanks! Glad it was helpful.

[@miklo5641]

Would that work with a 15 inch sub I have a 80th and I have a sub like that. Probably not as good as that it’s a both but I’m thinking it might be too much power.

[@rimapanapa5954]

Using the pre-existing sub as a bypass …. Duly noted : information obtained 😂 thanks man

[@FamilyElevation]

Man, thanks a ton I really appreciate the knowledge. You have been liked and subscribed to!💯🙏🏿

[@mark502]

Just bought some fuse taps!!! Thank you for that suggestion

[@JCTFIXIT]

Hope it works out good for you.

[@mark502]

@@JCTFIXIT appreciate it 🙏🏻 dropping a sub.

[@thatguykai479]

Kicker support recommended your video to me even though I already watched figured you know that’s pretty awesome

[@JCTFIXIT]

That's way awesome! Thanks for sharing!

[@user-fk2po2oo7r]

Please I’m asking for the rca jack what is the other piece called you used in place of the rca jacks

[@JCTFIXIT]

High level input.

[@LostinTimeYT]

Super helpful. Thank you.

[@Bananas1973]

Your video is a great help thanks.

[@alexmotts]

If im using a line out converter do i still need a remote wire?also the line out converter has the rca on the output side i can just plug directly to the amp right?

[@JCTFIXIT]

Yes you still need remote wire for most amps. Yes go rca direct from line output converter to amp.

[@whenmountainsmove]

Where do I connect the remote wire to a factory radio? Its always in the aftermarket harness but I have a stock prius radio.

[@JCTFIXIT]

Watch the video again. It's all there mate.

[@crystalapaul8711]

Thanks your video was great just what I was looking for

[@JCTFIXIT]

You're welcome!

[@markj882]

I have a question and i hope you might be able yo answer it. Can you wire the remote wire to the ignition wire im not sure where the remote wire is on the factory wire

[@JCTFIXIT]

Technically you could wire this to the ignition and I find this is easiest to do on the ignition fuse by adding a circuit

[@jimmysegovia2688]

that's tite man!!!! I gonna do that!!!!! thank you for sharing.

[@Boosteddjay]

hands down the most informative straight forward video i’ve watched and it also helps that i have a hyundai. thank you!!!!!

[@JCTFIXIT]

Thanks for the kind words!

[@Boosteddjay]

@@JCTFIXIT the only thing i’m struggling with is where to run the speaker wire, do i just tap into the door speakers? because i don’t have deck speakers

[@JCTFIXIT]

Yes rear door speakers. Its a little more involved

[@Boosteddjay]

@@JCTFIXIT alright man thank you!

[@JCTFIXIT]

Good luck.

[@dantemon6952]

Well that made it a whole lot easier ...cheers ...

[@JCTFIXIT]

Sweet

[@mick91z24]

I got the plug 8 wires 4 black 4 yellow what goes where

[@alexisperez2893]

Hey man quick question? Where can I find that cord for the remote( bass knob) since I can’t find it due to their only being the new styles for the remote control?

[@JCTFIXIT]

Depending on what amp you are using it could vary. Many of them use an RJ12 cable. Good luck

[@danieljarvis8380]

Now that add a speaker input on the amp Where do you get the wiring harness to tap into that or can I put loose wires in there?

[@JCTFIXIT]

If your amp has high level inputs, it should come with the harness

[@Y_o_u_n_g_a_d_d_i_c_t]

How do you add the fuse

[@oliviahenderson3587]

where did you get the speaker input wire? i can’t find them anywhere

[@JCTFIXIT]

Walmart?

[@ganeshnarayan5505]

Hello can anyone tell me if you run rca from head unit to your amp i know that's for bass but how do you connect for the mids and tweeter do i need 4 channel amp right. Anyone please

[@jackedwards9574]

Yes run your rca and get a 4 channel amp also

[@plus2579]

dude this video was exactly what i needed.

[@JCTFIXIT]

Love to hear that!

[@timeismoneyreviews4819]

Do u have to run your speakers directly to the amp to get power from the amp from component speakers with a line out converter?

[@JCTFIXIT]

The way you worded this question is a little tricky so I don't want to throw you off but if you are going to an amp that does not have high-level input then yes you would go to a line out converter then to your amp input

[@jameshart3259]

I’m considering going with a powered sub to add a little bass to my factory stereo, wondering if should go with the Rockford fosgate 300 watt that goes frequency response: 35-200 Hz or if I should spend the extra $140 and get the 500 watt that has a frequency response: 20-200 Hz, that seems to be the only difference is a little bit deeper bass. Curious what watt your amp is and what you think I should go with

[@JCTFIXIT]

If it were me I would go with the p-300.

[@jaretvanpatten2170]

Can someone tell me what the pieces are called that tap into the fuse to turn the amp on and off? And what the pieces are called that he tapped into the rear speaker with?

[@JCTFIXIT]

Look at my Amazon links in the description

[@joecrowe6256]

I've got a powered Fosgate sub to install and I need to tap into factory speakers like you did. Somebody told me I'd need to tap into both left and right rear door speakers because if I just tap into one side, I'd only get one channel. I've seen others just tap into one side though. Do you know if it's necessary?

[@JCTFIXIT]

Technically one would work but if you wire in the right side and the based on the song is only sent to the left Channel you will not get the bass it is best practice to get left and right channels

[@albertsautodiagnosticsllc2130]

2011 Subaru legacy 3.6 premium Haram kardon non nav I am looking for a connecter pinouts from the head unit to the factory amp so I can tap into the speaker level rear speakers to install a aftermarket amp and bypass the factory amp but I cannot find a wire diagram any help would be appreciated

[@JCTFIXIT]

I'm no help there. Good luck

[@edwincordero8]

Does the power or sound quality on the rear speakers is reduced when connecting the high output converter to them?

[@JCTFIXIT]

Shouldn't be.

[@fromtheundergroundproducti6229]

Can you wire the new amp to a rear speaker instead of a rear sub? Also, how do you tell between the positive and negative wires? Mine also has a black wire that I assume is a ground wire.. 5 wires total.

[@JCTFIXIT]

Absolutely you can.

[@PHAToregon]

Fantastic

[@Igh86]

On your amp speaker inputs you got 5 wires the center one is color black did you connect that one or left it alone

[@JCTFIXIT]

Ground

[@SlamryCamry19]

Excellent video

[@JCTFIXIT]

Glad it was helpful!

[@cuevasxjr5]

Did you put the gray together and white together then connect to your positive and negative in the rear speaker ?

[@JCTFIXIT]

The grays are for one side in the rear and the white is the other so you have positive and negative on both the left and right inputs. The copper with clear jacket is wired to my submitter in the box.

[@Packers1800]

I have a 2016 Chevy Malibu and it doesn’t have rca outputs on my head unit. How would I tap in to the speaker wires if I don’t have rear deck speakers?

[@JCTFIXIT]

Run from rear door speakers into panel between front and rear doors then down under carpets to back seats to trunk. If your amp doesn't have a high level input, you will need a line converter. It takes the speaker signal and dumbs it down and switches it to rca to go into your amp.

[@martinhaugen9261]

How did those t taps hold up? Looking to use t taps to tap my speakers fpr LOC

[@JCTFIXIT]

I have used them on lots of stuff. So far so good

[@JonahNAloha]

Can I run the rca wires coming out of my amp straight to the factory speakers?

[@JCTFIXIT]

If your amp doesn't have a high level inputs like mine you will need a device called a line output converter.

[@markj882]

So you answered my question qbout the ignition can i run thru the orignal factory stereo wire ?

[@JCTFIXIT]

If you can find it, you probably could but it would be best to still have an isolated circuit with its own fuse.

[@baileegatton7767]

Will my system work with rca to the rca converter to the rear left speakers wires? And what wire do you use to run the add a circuit? Speaker?

[@JCTFIXIT]

Your wording is a little confusing. Without knowing your setup, it's hard to say. Generally though on an amp, the rca inputs are for signals that are low and not being driven already. High level inputs are called such because they can handle a higher watt load incoming into the amp.

[@Iancarterphoto]

So if I did this could I use the speakers in the back if they’re not woofers? I don’t have any stock woofer in the back just regular 9 inch speakers could I still use those?

[@JCTFIXIT]

Yes absolutely

[@abelcorona1060]

My acura rdx has a stock sub and amp, i was going to run the loc with the 2 back speakers. Do i have to unplug my stock sub/amp or no? Thanks in advance. Im guessing i dont have to, not 100% sure tho

[@JCTFIXIT]

You don't have to but I would probably unhook the sub or you could I have some funky phase issues

[@chrisjohnston5748]

Thanks for the video. Does your car have a factory amplifier powering that factory subwoofer? I'm beginning to install a sub and amplifier in a similar automobile and was told to make sure that I tapped intothe speaker signal prior to the factory amplifier otherwise I'd be running too many watts into my aftermarket amplifier. Thanks.

[@JCTFIXIT]

Yes I am downstream of factory amp. I have not had any problems, but it is probably best practice to tap signals upstream of factory amp.

[@AydenWebb]

Thanks brother, I have an old Dakota that has a cassette tape player in it that I still use.

[@ClaraSilva-el3yr]

I have a factory sub in my trunk as well. I just tap the speaker wires between the amp and the factory sub? I would love to not have to open my dash. On my amps manual it says to connect speaker outputs from receiver to high level input connector of amplifier. I could go into my dash and do that?

[@JCTFIXIT]

You could.....

[@natevalverde2221]

Do the t taps allow the rear speaks to continue to play. I tapped in directly and now they don’t work is that why?

[@JCTFIXIT]

You need to leave the lines running to rear speakers in place and tap into them to piggyback the signal.

[@rahoffman123]

Is it a regular occurrence to hook an amp and speakers to a factory stereo I am just wondering I do not want to remove my factory TV in my cadilac but I want bigger sound

[@JCTFIXIT]

Especially newer stereos with big touch screens people want better sound but don't want to mess with the head unit

[@yanuck]

Is that working if i plug speaker input to normal factory speakers since i don't have a factory subwoofer?

[@JCTFIXIT]

Yes absolutely.

[@xXdaboss105Xx]

great video bro, i was so curious if i needed to spend the extra money on a raspberry in my 2010 pilot but it has a stock 10” so as long as i can with my amp i’m just gonna splice into it like you!

[@JCTFIXIT]

Yes, I like the way my stock 8 compliments my 12 as well. I tried it with just the 12 and it sounds good, but having both sounds phenomenal. Please like and subscribe! Thanks

[@malcolmemmons5043]

If I don't have a factory subwoofer what do I hook the speaker inputs up to instead? Do I have to go off two different speakers? Also do I need to make sure the speakers I tap into produce bass?

[@JCTFIXIT]

You can just tap your rear speakers technically you only need to do one but it's probably better to do both just in case the sound Fades left or right

[@dclean-_-1653]

Is it safe to run a power wire from rmt to positive? As in the amp is on when the battery is giving power?

[@JCTFIXIT]

No because then your amp will always be on and drain your battery

[@KAR-KAT]

Do you need to run the speaker wires to all the speakers in your car?

[@JCTFIXIT]

No. Rears only.

[@wkeil1981]

What a great video

[@JCTFIXIT]

Glad you enjoyed it. Hope it gave you some good ideas.

[@jaskarandhaliwal8]

Where to hook the power wire if you don't have under the hood battery? Should I hook it to jump start connecter?

[@JCTFIXIT]

If your battery is located somewhere else like trunk or under rear seat, just run it from there.

[@Star89enterprisez]

Hey one question o had for you and haven’t been able to find much info about is, “do you also ground the middle black high input wire on the amp?” And if so, where do you ground it to? Back of the amp or chassis where amp is grounded?

[@JCTFIXIT]

You just ground it. Doesn't matter to the amp or chassis because ultimately the amp will be grounded to the chassis.

[@csordasjanos1987]

Thank you for share this video!!👍

[@JCTFIXIT]

You're welcome!

[@isaacsherwood48]

so is adding the fuse to the circuit box the same thing as hooking it up to your factory radio?

[@JCTFIXIT]

I am having a hard time understanding your question. Perhaps recording it could help?

[@drager230]

This vid is so helpful

[@JCTFIXIT]

Thanks. Glad you found it to be helpful.

[@bigstunnahunna6073]

So this was done with no converter or connection to the radio?

[@JCTFIXIT]

Yes. Can be done with amp that allows high level inputs. Sometimes a nice line out converter with built in remote wire is an easier /better setup

[@Codysmokes]

I never comment good job but dude you deserve the good job comment lol! Saved me a lot of work!!

[@JCTFIXIT]

Awesome! Glad it was helpful!

[@str88s58]

I just connected the remote wire from the loc to amp and it works fine

[@shawnbutler2779]

My high input speaker to tap into the factory speaker has 5 wires white/black plain white gray and gray and black and then just plain black what’s the black one for? Cause the white and gray is for positive and negative but can’t figure out what the 5th one goes to

[@JCTFIXIT]

Ground most likely

[@calefox1090]

So I did what you did with the added circuit and I couldn’t get anything but static out of it when the car was on

[@JCTFIXIT]

Your wiring to speakers is not right, or perhaps not grounded.

[@RicHart1985]

Nice! Love this video. Clear and to the point explanation. Thank you!

[@JCTFIXIT]

Thanks!

[@kymmedia2]

Were can I buy the speaker input wire from

[@JCTFIXIT]

For generic speaker wire, walmart or amazon would have it. I would recommend 16 gauge or 14 Guage is even thicker.

[@davidramos6636]

Thank you for this! When tapping into the factory speaker (not a woofer), can I just use one of the speakers?

[@JCTFIXIT]

You could, and for most music it would sound good

[@Chiwas392]

Can this method work on a newer charger ?lmk asap plz

[@JCTFIXIT]

Yes. Absolutely

[@e3mada]

Im going for it. Thank you.

[@JCTFIXIT]

Good luck!

[@mandoempire1221]

How do you get to the trunk speakers

[@JCTFIXIT]

Not 100% sure what you mean. My car has a factory sub. If you don't have one, you can tap into your rear speakers which may be in the doors.

[@lunatictesh8748]

Did you disconnect negative terminal before installing the power cable

[@JCTFIXIT]

That's good practice yes. Usually I run all the cable first and them hook up to the battery very last.

[@mckinnon1102]

Do you have to tap into a factory sub or can it be regular speakers

[@JCTFIXIT]

You can tap into regular speakers. I tapped sub because of location.

[@bbaileystl]

perfect vid!

[@JCTFIXIT]

Thanks

[@Midwest_Show_Stoppers]

We’re does the black wire go on the inputs

[@JCTFIXIT]

Leave wire unconnected or ground it.

[@tiredoldman5329]

Nice video. Im going to do that with my 2018.

[@JCTFIXIT]

Sweet. Good luck!

[@Brantleep]

My first time wiring a subwoofer in. Other that wire sizes and wiring info what is some other advice someone could give me like the ignition fuze hack dude just showed us