Easy to install. No need to cut! No need for splicing! It can be inserted into the existing factory wiring on your vehicle and is equipped with a standard 4-pin trailer wiring connector at the rear for inserting and towing the trailer. It can be used to connect the taillights of a trailer, brake signal lights and turn signals. The 4-way trailer light cable is very popular on various trailers, adding a multi-functional towing option to your vehicle. Adopt mount technology. This type of circuit generates less heat, has the best light intensity and long-lasting performance. To promote long-term use and weather resistance, this 4-pole trailer lighting harness is equipped with a rubber dust cover. When not in use, it can be easily installed on the 4-way flat connector to protect it from outdoor factors. Pins: 4 pins name:Trailer wiring harness Part Number: 55513 Fitment: for 2005-2015 for T100 1994-1998 for 2010-2012 Color:As Shown Material:Plastic Package Contents: 1 * Trailer wiring harness 1 set * Install accessories Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.