Update: With some help from juicebox00 I now believe I know what all of these are for. #1 is acc, #2 is key on run, #3 is for parking lights, #5 is always powered (thanks Juicebox) and #4 is headlights. In the pic above # 2&1 are on the left side top to bottom, right side is 3,4,5 top to bottom.