Hello everyone! I recently purchased a 2000 limited 4runner and one of the first things i did was to swap out the stock headunit for my pioneer avh-x5500bhs and install my backup camera with it. There are some write ups on installing backup cameras however the one thing that is commonly left out is the reverse signal wire used to give the headunit a signal to display the camera. The only other suggestion I found was to run a wire all the way from the reverse light itself or to splice into the switch directly on the transmission. However after some experimenting I decided to use the signal wire behind the dash panel that activates the drive indicator light. If you can disassemble the dash using another guide then you can splice into this signal wire and drop the new wire right behind the dash to the back of your headunit. The attatched pictures so the wire you want. Its attatched to one of the plugs on the left side of the instrument cluster and is red with a yellow stripe. Hope this helps anyone with their backup camera install!