Sorry, there is no wire on the headlamps that goes to +12V (actually battery/alternator level) when the high beams are on. What you're connected to is the GROUND for the LOW beam. (I bet the wire you connected to is white/red.) If you are connected this way, you're powering your relay THROUGH the low beam filament; it "works" because the relay doesn't really need "full" voltage to engage. Wired this way, if you burn out your LOW beam headlamp your driving lights won't work!sameshima said:Thanks Mel. As it turns out it was the 3rd wire I tried (of course) bottom left pin that goes on with the high beam switch.