Just installed Euro headlights, clear blinkers, and smoked taillights this weekend. All checked out fine except when activating the turn signals (left and right), instead of the "clicking" with each blink I get an ignition-key "buzzing" with each blink. What gives? The only difference I can see is in the rear taillights --

US: 10W side marker, 10W rear marker, 21W blinker, 21W backup, 21W brake

Euro (smoked): 10W rear marker, 21W blinker, 21W backup, 21W brake

Any help is much appreciated!