With a screwdriver take it apart and identify the major components.
Just make sure the device has a microphone and the A2DP protocol for easy smartphone interaction. Hacking a Bluetooth speaker will have almost everything you need. You can also find just Bluetooth Receiver modules on Ebay, Alibaba, and other hobby sites, but they may require a few extra parts (i.e. I purchased my Roverbeats Bluetooth speaker from Amazon for $23, but I have also purchased similar types from China for just $7.
Car stereo with bluetooth handsfree portable#
I cannibalized the Bluetooth receiver from an inexpensive portable Bluetooth speaker. LM78M05 5v output 0.5Amp Linear Regulator.Bluetooth receiver module: I hacked mine from an inexpensive Bluetooth speaker, model T3 from Roverbeats.My model is a BMW C33 US DIN made by Alpine. Car stereo with cassette tape player or CD player.In what follows, I'll show you the steps I took so you can do this with your car radio using an inexpensive Bluetooth speaker. The hands-free microphone is mounted on the tape door so that calls and dictation from my smartphone can also be made.
Now, when the tape selector is pressed, instead of a tape, the Bluetooth receiver will be played.
In this hack, I show how I upgraded my 1997 BMW E36 M3 car radio by adding a hands-free Bluetooth receiver into the factory radio. With some help from the other sites and some adjustments, the results in this post are pretty close. I was looking for a solution where my smartphone audio and phone could play directly through my car radio like the latest Tesla. They either require a cable to be attached to your phone, and we have enough cables as it is, or they use a poor sounding FM transmitter or tape input. There are a lot of options available to add an auxiliary input to you car radio, but in my opinion, they are mostly sub-par.
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