Review on 🚦 Hopkins 48925 Tail Light Converter: 4-Wire Flat Extension for Enhanced Lighting Performance by Frank Dubey

I have a 2004 GMC 1500, taillights have amber turn signals and red brake lights. great if you want to hook up a 3rd brake light on top of the rear brake lights, but complicates the 4 wire flat wiring for independent brake and curve trailers. The WT (work truck) model I have does not have a harness connector for the trailer lights in the junction box on the back of the truck. The answer was to hook it up to the taillights, there's room for that in the driver's side taillight well, and the green wire can go under the bumper to the passenger's side. If you lift Flat 4 in bed under the topper, it won't rust in winter like when it's lying on the salt. I turn on the guideline, make sure I'm on the bulb, then cut the colored wire, the light stops telling you you have the correct wire, insulate both sides and the wire for the converter, twist, solder and glue, repeat for each left, right, brake and move.