DIY Bluetooth any car radio under $2

[@robertaupton3221]

Why not use the cassette inputs? Losing the FM radio seems too much?

[@tslim250]

add in a double pole on off switch and you can make the cut leads switchable for returning to factory radio condition when bluetooth isn't being used.

[@tyronenelson9124]

You also need to remember to incorporate noise suppression circuitry, as these BT modules put a lot of electrical noise onto the ground lines of the actual car stereo amplifier.

[@TechUpBuilds]

I haven't had any issues yet an I've done a few of these.

[@ashraaqwahab2817]

Alternatively, would it be possible to wire it to the cassette player input instead? Since some people might still want FM radio, but not need the cassette deck anymore?

[@stevencarlson5422]

Also could wire in some diodes and maybe a switch for turning it on or off

[@TechUpBuilds]

I had issues with trying to get this to work, as it was my first idea. There is a little preamp IC on the tape deck but it had no luck getting a clean signal.

[@wyokaiju992]

@@TechUpBuilds Ive managed to do it on a ford Crown Vic So it varies by radio for sure

[@stevencarlson5422]

@@TechUpBuilds there is a thing called a Bluetooth cassette adapter that works just as good and no modifications needed

[@TechUpBuilds]

@@stevencarlson5422 I don't like how you have to recharge them, and not all radio's have a cassette player.

[@simonilett998]

How do I do it if I still want to use the radio?