My buddy just picked up a Raptor with a Pio Z110BT. Stereo shuts off when he goes over bumps so I had him come over. Some asshat cut and butchered the harness. Cleaned up the power/ground and put the truck back together. Really wanted to fix the whole harness up and grab an adapter, but we had 15 minutes lol. new red/yel/blu/gnd and that was it.
Still happens. Either the stereo or the hack job on the stock harness. I bet the latter.
Stereo also has an "emergency brake wire" not detected error. I don't know which way that one is switched, but would assume that wouldn't cause this problem but instead do something only to the user interface.