KngArthr wrote: ↑
Wed Dec 11, 2019 5:34 pm
I am also looking into doing this. I would like to get rid of the original car stereo header unit completely and create one with a Raspberry Pi and a touchscreen. I have a 2002 Honda Accord. Some concerns I have so far are:
-Is there a way to connect the header unit wires to the Raspberry Pi?
Do you mean plug the Pi into the car rather than the head unit you're removing into the Pi?
-I'm assuming there is an adaptor to be able to plug it into the USB port?
Nope. There's a bunch of analogue connections on the back of the head unit and, if you're lucky there'll be one ot the car's data buses present too. The ISO standard is here but check whether that appplies to your model: https://en.wikipedia.org/wiki/Connectors_for_car_audio
-I have heard that stereo head units have amplifiers and equalizers built-in. Is there a way the Raspberry PI can act/mimic those?
Probably but it'll likely be easier to put a power amp between the Pi and the speakers. Try asking on a car audio specific forum.
-How will the Raspberry Pi know which sounds to send to the tweeters and which sounds to send to the bass speakers?
it won't , and I doubt that your head unit does either. Equally, I doubt that your car has seperate woofers, tweeters and midrange speakers. It's generally something taken care of in the speaker cabinet or by an external crossover circuit. Again car audio or audiophile websites and forums are probably the best palce to look.
-Will I be able to use my steering wheel controls?
Maybe. If you can safely interface your car's data bus to the Pi then identify and decode the necessary messages. Be careful with the hardware interfacing here. If you damage your car you could be in for some expensive bills.
-Is there a way for Bluetooth connectivity?
Possibly, it depends on what you want and which model Pi you're using. zeroW, zeroWH, 3A, 3B, 3A+, 3B+, and 4B have onboard bluetooth other Pi models don't.
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