Coming from VW/Audi it’s easier to just grab a factory unit and have it programmed. Yea it’s expensive, but the German cars aren’t super easy to tinker with.
this post was submitted on 31 Aug 2024
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Call Crutchfield, they will know for sure.
I did this for a Toyota using an idatalink and retained everything plus added a few things. the idatalink translates the cars information into something a compatible head unit can understand.
TPS, oil, water, check engine, steering wheel controls, etc. some vehicles even have climate control and window controls which are supported.
Interesting, thank you! I will check them out. Much appreciated
Actually i saw the forums youre talking about and im going to guess youre out of luck if you want something simple.
An alternative is to get a dedicated carplay screen. Not that im recommending it, but here’s an example:
Good luck is my best answer.
You'd have to find out exactly how each subsystem works, and reproduce that to the extent it's provided by the factory head unit.
Take the TPS - how much of that system is integrated into the factory unit, or does it just display data retrieved from the TPS system? If it just retrieves that data, how does that interface function? Does it run over CANBUS, or does it use a point-to-point connection with custom signaling?
You'll have to figure this out for everything controlled by the head unit.
I really doubt this is a realistically achievable goal.
Thats pretty much what I was expecting really. The only other thing I have noticed that is semi related - others have done mods (different cars entirely) to have ODB hooked up to the display. I believe I can get tire pressure etc from ODB; possibly theres a head unit that connects that up.
thanks for the response!