Has anyone hooked up a flash 2 pass device to activate a garage door opener on a 2010 R 56. I am looking for the correct high beam wire and ground wire at the headlight plug. I know the high beam wire is the yellow/red wire confirming it by testing with a vom with the high beams on. However when I hook the flash 2 pass trasmitter up using the yellow/red and the small brown wire it doesn't work. The receiver red light does flash as it is supposed to when connected. However when I activate the high beams twice it doesn't work.