I was just wondering the same thing for a 2013 Honda Civic - has the screen's (the "head unit"?) firmware been fully dumped and reverse engineered?

How realistic would it be to run fully custom firmware there, and even communicate over usb - for example, if I had a pi running in the car, and it used the usb connection to show things on the built-in display?

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rockostrich 2 hours ago | parent | next [-]

It's probably easier to just buy an aftermarket head unit. The only thing you'll need to confirm is that it supports features you care about e.g. steering wheel controls.

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EvanAnderson an hour ago | parent | prev | next [-]

I'd love to pwn the head unit in my 2014 Honda CR-V just so I can stop it from sending a "Play" command every time a phone associates with the Bluetooth and the audio system was left "on".

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kowbell 24 minutes ago | parent [-]

I also have a 2014 CR-V and I hate this too. But even moreso, I hate that there isn't a play/pause button at all. If I need to stop audio (e.g. pulling up to a drivethru, or starting a conversation), I gotta hit the phone. Heaven forbid I'm playing a CD, nothing I can do at that point.

Putting up a bug bounty of "ordering you a pizza" if anyone tackles this!

	▲	EvanAnderson 18 minutes ago \| parent [-]
		I get pause (for Bluetooth playback, at least) by pushing the volume encoder knob. That works well for me.

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rithdmc 2 hours ago | parent | prev [-]

Probably more difficult than hijacking the display with the pi. But that's just a vibe.