Originally Posted by GalletGun

I just did this mod recently. Keep in mind that the wire colors displayed on the illustration for the tail light harness are correct, so follow those colors. On your 7443 socket though, dont go by the wire colors, go by the A, B, and C labeling on the harness to discern which is the low filament, high filament, and ground wire.

I made the mistake of relying just on the wire colors and had my low and high filament wires reversed the first time. lol.