Back from vacation, some new goodies arrived. My newest goal here is a Sync 3 Lockpick allowing video in motion.
The theory is sound -- two CAN modules, one on the vehicle and one on the APIM. When you want video-in-motion, it intercepts all the "at speed" messages to the APIM and replaces them with "driving slowly in reverse" messages. With enough wiring, theoretically allows you to activate side-mounted cameras using the turn signal.
There's aftermarket products that exist to do this already, but I want to figure it out on my own for much cheaper -- $30 APIM extension, $10 relay, $20 controllers... vs $350 for the Rostras modules.
Trying to gauge other peoples' interest in such a thing. Not limited to Sync3, I was able to trigger the camera on my 2010 (Sync 1) so with the right codes, Sync 2 would also work