I am going to try this way since I need a quick solution by next week. Question...with the switch, did you just put it between the yellow wire on the Nav Unit. Also, so with this switch, if you leave it in the "NAV ON" position then shut the vehicle off then back on, I assume the video will not work. However, while the car is on and you flick the switch "OFF" then back "ON" will the video work?
Thanks!