Use the 7 pin connector anyway see below and just leave out the last 2 wires. 7 pin trailer wiring diagram with brakes 7 pin flat trailer wiring diagram with brakes 7 pin rv trailer wiring diagram with brakes 7 pin trailer wiring diagram with brakes every electrical arrangement is made up of various different parts.

7 Wire Trailer Schematic Wiring Diagrams
7 pin trailer wiring diagram with electric brakes. Blue electric brakes or hydraulic reverse disable see blue wire notes below in the trailer wiring diagram and connector application chart below use the first 5 pins and ignore the rest. Trailer wiring diagrams trailer wiring connectors. Trailer wiring diagrams trailer wiring connectors various connectors are available from four to seven pins that allow for the transfer of power for the lighting as well as auxiliary functions such as an electric trailer brake controller backup lights or a 12v power supply for a winch or interior trailer lights. These directions will likely be easy to grasp and apply. 7 pin trailer wiring diagram with brakes amazing 7 wire trailer 7 pin trailer wiring diagram with brakes. Wiring diagram comes with a number of easy to adhere to wiring diagram instructions.
If you dont follow this your trailer or tow vehicle cant be used with any other implement. If not the arrangement will not function as it ought to be. Various connectors are available from four to seven pins that allow for the transfer of power for the lighting as well as auxiliary functions such as an electric trailer brake controller backup lights or a 12v power supply for a winch or interior trailer lights. If your truck has a built in 7 pin socket but you only need 5 of the pins. There is a standard method of wiring a 7 pin trailer connector. It really is supposed to assist all of the typical person in developing a correct program.
Each component ought to be set and connected with different parts in particular manner.