Can someone tell me what is the easiest and cheapest way to do these types of modifications? - I want to be able to turn on my backup video camera whenever I want. - I want to be able to attach a DVD player and Xbox, etc. to my LCD video display so when I'm parked I can play DVD movies, or play video games. - I want to be able to use my GPS at all times and not just went I'm stopped, so my passenger can use the GPS while I'm driving.
A lockpick 3 will give you the A/V inputs and the ability to use the nav while in motion. Adding a switch for the revers camera will let you use the backup camera at any time.