Was looking through auctions for random CR-Z parts and stumbled upon the following:
Interestingly enough - it has an AV plug and an additional USB... I am thinking about making a wasteful decision and purchasing this just to have it and mess around with giving myself extra functionality. I do have an aftermarket headunit that is pretty open to weird modifications so getting use out of that AV plug is not far from reality.
And I did look up some keywords for more information on this but maybe I didn't do enough looking.