Here's agood one...2006 Toyota Highlander with AVIC-D1 that's been doing great for a couple of years, suddenly the unit stays powered up even after key is removed, doors opened, etc. Theres no audio when this happens as the factory amp is shut down then (amp turn on wire not energized at this time). Checked wiring and the switched power stays off when vehicle shut off but unit will stay powered up. Any ideas?....

Beuller?...Beuller?...