I have installed a code alarm system and want to use the trunk release function to lower the back window. I found two wires at the switch that seem to run the window, I think they are red and red/black. Both have a constant 12v. Red/black drops to ground when the window goes down and the red drops to ground when the window is going up. Will simply placing a relay through normally closed control the window? It just doesn't seem like that will work. I don't know what else to try. I was hoping to find a wire that read 0 until the window went down.