2014 - 2018 Mazda 3 Amp and Sub Install

Parts used linked in the description below!
Watch a full tutorial as a 2015 Mazda 3 will have a 10" Rockford Fosgate powered subwoofer installed in the trunk. This amp and sub combo will add about 300 watts RMS of bass to the factory sound system. Note, this Mazda 3 was equipped with the factory Bose sound system.
This video applies to Mazda 3 models for years 2014, 2015, 2016, 2017, and 2018. This video also includes complete amplifier wiring, installation, and testing.
Bose Speaker Wiring Color Diagram:
Left Rear (+):
Left Rear (-):
Right Rear (+):
Right Rear (-):
NOTE: If you don't have the Bose sound system, we recommend tapping into the factory rear speakers at the B-Pillar.
Bose Speaker Wiring Color Diagram:
Left Rear (+):
Left Rear (-):
Right Rear (+):
Right Rear (-):
If you have any questions, leave a comment below! Be sure to like and subscribe!
Parts used in this install (Amazon Associate Paid Links):
*Rockford Fosgate 10" Powered Subwoofer: amzn.to/3xtdfz0
*8 Gauge Amplifier Wiring Kit: amzn.to/3iWX7jK
*Pac LP7-2 Line out Converter: amzn.to/33lRh5u
OR if you have bass roll off, we recommend the AudioControl LC2i: amzn.to/3enXbWm
OR here is a traditional bass package: amzn.to/3qCXvHA
Disclosure: As an Amazon Associate I earn from qualifying purchases

[@ProvoBeastAudio]

Parts used linked in the description of the video!

[@craigcameron770]

For anyone that might watch this in the future and can’t find the amp under the passenger seat, on my 2015 GT it’s behind the passenger side kick panel / glove box. Took me almost an hour to find it!

[@GJJC13]

Nice video. I guess that the OEM signal going from the OEM stereo to the dash tweeters is ALREADY filtered, since I see no capacitor on the OEM tweeter. Therefore, installing 3.5 speakers in the dash would be quite like just intstalling tweeters, since the range of signal will surely be above 3000 Hz, correct? Thanks

[@martinf.38]

Nice video, thank you for that! I want to install an EM-Phaser EBP1000A on my Mazda with Bose System. It looks like nearly the Same Interface like the Woofer in the Video. It also has Hi-Lo Converter and Auto Turn on inside. But I anyway want to use the "Remote" cable to turn the Woofer on, because I had some bad memories regarding the auto turn on function. So u say we should use the "2D" Pin o the green harness. In an other post i see, that "2F" should be used. What is correct / better? Tanks!

[@eddievaitohi2719]

Is there any view on the exiting factory radio pls

[@tricombfarmer7320]

I have a 2014 cx5 the rear door speakers are more mid to lower. It has the Bose stereo. I wish I could find a harness to attach cause I’m very limited behind the head unit and the amp is u see the dash.

[@oskarkiddo615]

Would this work in a Mazda 3 2013? And also do you think the 12' rockford fosgate powered sub would fit instead of the 10'?

[@z240m3]

I really appreciate this video I've got 2 10 inch subs I wanted to change from my old 06 scion xb to My 2014 hatchback mazda 3 and I wanted to know what line output converter to get since it's different than the one in my old xb

[@carlosfuentes9574]

Funny. I'm taking my sub and amp from my 2006 xb to my 2014 Mazda 3 hatchback

[@K03sport]

I've watched several of your Mazda install videos. I'm putting a pwrd sub (JBL Nano) under the p-side seat of a '16 CX-5 Touring non-bose. It uses spkr-lvl (high) input. I'm trying to locate the best place to tap the spkr signal. I do not want to cut the factory radio harness (orange white plug). I want to tap the speaker wire after the orange (body harness); is that a good spot? Do I need to tap the front L/R or can I tap the rear L/R? is the rear spkr signal full range? it doesn't sound full range when fading 100% rear. I guess that is due to the spkr size.... Am I thinking correctly, or is there a better place to tap?

[@josehammet5907]

Can you tell me where you made your ground?

[@viivcreations9161]

my 2022 lexus doesnt even have acc. gromets....so i had to do it the ole fashion way and make one

[@SlowCarsFastSFV]

PAC AOEM-MAZ2 T-harness connects at the TAU behind the glovebox.. 2 sets of RCA outs (front and rear L/R) and a remote start wire. Works on 2007 to 2018 Mazda 3s.

[@ProvoBeastAudio]

For non-Bose equipped vehicles

[@SlowCarsFastSFV]

@ProvoBeastAudio The BOSE processing is done at the amp, which I removed. The AA and Carplay are pre TAU. I use it my 2018 Mazda 3 Grand Touring with a DSP and Amp in the hatch.

[@Borknesshas1]

You couldve routed into the rear tweeters. Just because the speakers cant produce the low freq bass doesnt mean that its not being sent over the wire

[@steven11hr]

Hello it’s my first time installing anything electrical and im stuck installing the twisted pair RCA Cable to the boss speaker. I am confused in if I am using the pro 7 or not. The amp kit I got has a twisted RCA cable do I cut those ends off as well and there will be 2 wires in each side ? I’m really confused. Please help 🙏🏾

[@2001eskimo]

No you never cut the RCA cable

[@oceanpointelcd3847]

Hi, great video. Question: my Mazda3 2016: w/o Bose system. Issue: the front speakers stopped working (doors, tweeter, etc...) barely some white noise and very faded sound. Yes, the fader is all the way set to the front. I believe either the amp is defective or -very unlikely- one bad speaker might the compromising the whole front speakers' volume? Any idea on how to fix this? The rear speakers work fine. Thanks

[@JacksonRiddle90]

having same problem same car

[@okayervin]

Hey I’m currently installing a subwoofer for my 2019. Is the Bose amplifier the same as the one in the video ? And what tools did you use to take out the seat ? I’ve been trouble on that step. Thanks !

[@seabassgouin7825]

Yo you ever figure it out?

[@okayervin]

@@seabassgouin7825 yeah! My friends helped me out until it came to the step with the amplifier. I ended up taking my car to an Audio shop and they had the whole wiring kit. But I had them installed it for me cause it was a pain to figure it out. They only charged me $20 thankfully

[@andrewsotelo4077]

Where did you put your remote wire to turn the amp on and off?

[@ProvoBeastAudio]

Our powered subwoofer did it automatically for us. No remote wire needed in our case. If you need one, a line out converter can generate one for you (Pac LP7-2) or you can go to the fuse box for an accessory source.

[@eddy22b62]

What changes as far as installation if my mazda does not have the factory bose system?

[@maflelei22]

I'm still waiting for help on this as well, I'm in the middle of putting a under seat car sub ill hit this section up once I find a alternative

[@eddy22b62]

@@maflelei22 thatd be awesome man! Ive never installed speakers and definitely dont want mess anything up.

[@jamesprice4539]

@@eddy22b62oh changing the door speakers are easy, it’s the amp that sucks ballsacks

[@stephenaguiniga7960]

Anyone know how to run speaker wire to all 4 door s

[@ProvoBeastAudio]

No need if you run a t-harness adapter.

[@a.j.4669]

I saw that you did a skar sdr 10 in a Mazda 6. Between the Rockford p300 10 and the skar sdr 10 package which would you recommend?

[@ProvoBeastAudio]

Skar package is twice the power, but requires a bit more work to install. Just depends on your level of effort desired with the install.

[@a.j.4669]

@@ProvoBeastAudio thanks have you ever had any skar products fail on you

[@ProvoBeastAudio]

@@a.j.4669 Sure, just like other brands as well. They do have a great warranty.

[@jimbob5892]

what do you recomend to replace the factory bose mine are blown well couple are

[@ProvoBeastAudio]

JBL makes great 2 ohm coaxials amzn.to/3p9EjQd

[@ProvoBeastAudio]

Most speakers with JBL are 2 ohm. If you install a 4 ohm speaker, you will notice a significant power reduction.

[@As5Hat]

You just hook into the trunk speaker with a line converter to on the sub. All you run is the remote wire from the trunk to the driver door ign on/off fuse sign a low pro fuse splice. And r the batter to amp. Battery to cap neg. Cap neg to amp, cap neg to gnd. You just jump both pos and Neg from line converter to back trunk tweeter. Gnd the amp. Attach sub speaker wires to amp. Screw it all down. Btw don't mount your amp to the sub. Vibes are gonna break your Amps smds plus the giant magnet in the sun is an obvious no no next to a power amp. Don't runnpower from battery on same side as alternator on any car as a general rule. Anywys, this install is a lot easier than your method. I also spliced a gain switch befwen converter and RCA to the driver consul for game controller without walking to the truck..

[@jhill32654]

Followed directions all went fine until removal of the front passenger seat to gain access to the BOSE amplifier. Whew, what is the answer to that ? I have tried everything to get those bolts to budge.

[@ProvoBeastAudio]

Impact driver. If using a ratchet and socket only, it will be tough. I recommend a breaker bar

[@summerli2700]

Cool friend. We have launched the 4modes led headlight bulb, would you like to try it? We wanna send it for you to try. I have contacted you by email, hope to hear from you, thanks.

[@wowerman]

To all trying to hook up High output to amp. This is not the best solution as quality of audio is not great.I am a dj, electronic engineer and music producer in one person. You want to replace stock stereo with third party stereo head unit with quality DSP and 50W RMS per speaker channel.Dedicated preamp for sub amplifier 600-1000W. Crossovers if you power up door speakers and tweeters from same OUT. Same goes for back speakers if using instead of sub. Crossovers is a must.Sub amp must have dB boost/trim ( shelf eq boost) and sub freq filter . Later on you want to upgrade door speakers to some reputable branded speakers such Pioneer, Alpine and such.Cheaper tweeters are good as long they are not piezo. Must be solid 40mm dia with coil. I used Blaupunkt EMA 455 600-Watt .Also I built own subs and they have not even have ports( 8-10Inch is fine) .All used in Ford Transit Custom van 2018.Stock stereo is a junk quality, so is in other cars.

[@EmilyAllan]

Well said.