Not sure how screen casting works on iPhone... But in theory, you could setup an RP3 to recieve screencasts over is own wifi network and just cast carplay to the screen. Then again, not sure if Apple supports simultaneous wifi+mobile data use. If not youd have a offline phone.

Edit: just learned about CarPlay dongles... Just pop one of those onto the RP3 running android, and it does exactly what I described above.

 

Totally missed this earlier - I've spent probably about 200 on this project, but I also killed a pi and eliminated half the converters I needed.. So this could probably be brought down to around 150? 125? - Once I actually have time / motivation to make a serious write up I'll have a better idea.

 

Coming back to revisit this cause I have my own solution! (Untested as of now)

A while back my parents bought a little android box, but stopped using it because it was unstable. I'm currently trying to make the machine stable, and load vanilla android onto it. No, this doesn't fix my carplay issue yet, however that should be a breeze. My focus switched as I got an OBD2 reader, and would rather have the info displayed on the dash rather than on my phone. Reason being is my phone is heavy and it's big and blocks the buttons, and it'll kill my battery if I forget to plug it in, and when I get in I want it to just work!

If/when i can get this installed and tested, I'll write something up!

 

Also revisiting this to update with my progress - I've made a PCBA pi hat for the RGBS output of the pi, cleans up the wiring nicely and makes it much more reliable.

 

Was actually looking at this thread yesterday, how hard was it to do all this? Do you run the Pi in the glove box?

Been trying to find a simple solid solution to the lack of AUX/BT audio on my car.

 

Yea I run it out of the glove box (not sure it would fit behind the dash)

It was hard to develop, but I'm not sure how hard it would be to implement. It boils down to cutting some wires and running some new wires. Depends on your level of comfort with car electronics I suppose.

 

You can make some money selling this as a kit. I'm interested either in a what to buy and do or a kit with instructions to buy. Would really breathe some new life into this car.

 

If I wasn't always lacking in free time I'd entertain the idea..
I've detailed a decent amount of what needs to happen to make this work, but I'd be happy to answer questions/share my schematic

 

Honestly, if you're able to find time to write up a DIY with pics, that'd be awesome.

 

I'll see what I can do, but likely the best I'd be able to offer is a detailed schematic - I'm about to be carless for 4 or so months.

 

In your adventure into this. Did you happen to located the video signal wires to the factory screen? I have an idea for something but need that info.

 

They make a hdmi to rca converter

 

I mean the factory video signals from the brain to the factory screen.

 

I found an article from 95, a VGA to RGB Sync diagram. I’ll be heading to my electronics store tonight to see if I can pick up some gates, a clean piece of PCB and a couple other odds and ends to try and get the ball rolling... FINALLY!!