My truck does not have a plug for my brake controller

Without telling us the year and make of the truck we can't give you a definitive answer. Fords have a receptacle under the dash along with older GM trucks. Newer GM's just give you 4 unterminated wires to work with.

Ron3rd wrote:
What year and model is your truck? What brand of controller? If you have a Tekonsha controller, the adapter pigtails are readily available for all major brands of trucks. Any RV store, Amazon, Ebay, etc, sells them. If you have another brand of controller, you might have to contact the mfg.

I have a Tekonsha Voyager brake controller. It came with a wiring harness, but I have nothing to plug the wiring harness into. Does a plug need to be wired into my truck?

A dealer of your brand should be able to help you with the location of thye plug and ordering a harness for you. If you have a late model Dodge, I have a factory harness I will give you.

Ok yes I see the brake control harnesses. For example, for this harness http://www.4wheelparts.com/Towing/Brake-Control-Wiring-Harness.aspx?t_c=67&t_s=484&t_pt=9257&t_pn=tkn3040&utm_source=google&utm_medium=froogle&utm_campaign=product&emlprox=out&ppcfon=1&gclid=CMLUlNn2p7oCFQGe4AodfDoANQ

there is a plug I would need to plug the harness into. This plug is missing from my truck. What would I need to get to be able to plug my harness in?

What year and model is your truck? What brand of controller? If you have a Tekonsha controller, the adapter pigtails are readily available for all major brands of trucks. Any RV store, Amazon, Ebay, etc, sells them. If you have another brand of controller, you might have to contact the mfg.

Most auto parts stores should call it a brake control harness.