Hey Will: You might want to check to see if your taillights blink when you activate your Bright/Dim floor switch.. It's a weird 'side-effect' but we discovered this when Alex was following me home and I was using my switch in the traffic pattern. We solved the problem by replacing the ' relays ' with NEW improved Relays with ' DIODES' built in We changed EVERY relay just in case . You could check this easily enough. Just turn your headlights on .. and have someone check your taillights when you active the dimmer switch. You MAY have this problem and not KNOW it I only discovered it since Alex was behind me driving home. Anyway .. Hope you're up an running well. Cometized (Chip)