Re: Front Camera
What I was thinking would work well is a system that would turn on when placed in "I" or something. When that transmission mode is selected, it would then trigger a relay allowing the front camera signal to pass through the reverse camera input (a simple bosch type relay could work for this). Then you would have to diode isolate the reverse input lead on the HU, and have that be an input to it.
Basically, you'd put it in reverse and everything would function like normal. You put it in "I" and the front camera could come on in place of the reverse camera. Certainly a lot more integrated than it automatically coming on if you're under 5mph (wouldn't come on in traffic, etc.), and not super difficult to do.
If/when I replace my Jeep with a Corvette, that's what I'm intending to do.