ABN Roj 7 Way Plug Inline Trailer Cord, 25&rsquo; Foot Cable & Round Adapter &ndash; Electrical Signal Trailer Wiring Connector Kit SAVE TIME: The ABN ROJ 7 Way Plug Inline Trailer Cord, 25 Foot Cable & Round Adapter  Electrical Signal Trailer Wiring Connector Kit removed guesswork out of vehicle-to-trailer wiring; If you need a plug to run your trucks electric light signals to your non-electric connection trailer, this simple gadget allows you to get the job done quickly and easily COLOR-CODED: Easily identifiable markings and different colors (blue, brown, green, red, yellow, black, white) that allow for simple, secure installation of RV and towing hook up EASY TO INSTALL: Connect your 7 round connection tow vehicle to connect your trailer; Several different ways to wire; Example  Blue = Trailer brakes, Brown = Right stop & turn, Green = Taillights, Red = Left stop and turn, Yellow = Center AUX, Black = 12V Charge Line, White = Ground; If using as a replacement, draw out what your current harness does (black=running) not what color goes to what wire, plug in the new harness and label what each does (Green=running), then connect running to running BUILT TO LAST: Sturdy black plastic construction that will not fade, rust, or break; 25-foot (4.9m) long cable with 30 Mil AWG copper is larger gauge for applications that carry more AMP USE ANYWHERE: 30 Mil extra-thick AWG copper is weather resistant from 40-degrees Fahrenheit (105C) dry and 15-degrees Fahrenheit (60C) wet; 2/10-1/12-4/16 Rated 105C (40F) dry Rated 60C (15F) wet 30 Mil AWG Copper