Hi, Had the same problem when I started, we ended up tapping the positive wire on both the high beams and the fog lamps. we made a multi-flash criss crossing pattern so there is not 2 lights involved, but 4...... The only thing is (if you have fog lights) when left stock the fog lights would only come on via the switch and when the headlights were in low-beam mode. since we basically used the fog lamp switch as the trigger for our Whelen flasher, now the fog lights come on automatically when you apply the high beams. coincidentally if you are in flasher mode, and switch to high beams you kill the flasher until returning to low beam mode. Thats ok with me because I really thought the fog lamps should work when you were in high beam mode anyway. not in low beam mode.....