Wow....y'all guys are reading my mind these days. I literally just logged on to post this picture to make sure that my theory was sound. I want to tap into both the overhead lights AND the radio so that when I am getting into the truck (and the interior lights come on) as well as when the radio has power (anytime the truck is on) the floor and doorhandle lights are on. I know I have to use a relay to prevent my two power "sources" from influencing each other...I don't mean to hijack this thread Chili but I think we are literally wanting to do the same thing. By the way, I'll tap the radio in the fuse box with an "extend-a-fuse" wire and I'll tap the "interior lights" at the current (crappy) floor lamp in the driver's footwell.