I am toying with the idea of buying the factory 7 pin/ 4 pin receptacle that snaps into the bumper and wiring to that. The big problem is... the back side of that is a female connector that receives the round factory connector which is only on the truck equipped with the factory installed tow package. One would have to source the connector on the factory harness. Since this is most likely impossible, the other option is to figure out a way to solder wires into the back side of the oval bumper receptacle and pot the wires. This would give you something to wire to. You could even wire a brake controller if you chose to. Seems like a lot of trouble to go through to tow with a truck. Toyota could have easily left a plug back there and sell the parts to install a nice factory 4 pin.

Check to see that the Hopkins plug and play is for the 2016 and not the 2015. To my knowledge, no one on this site has successfully wired their 2016 for trailer lights. At least no one has done so without cutting the truck wires. I have not heard of anyone doing this yet. It seems everyone is installing the hitch and waiting on some non destructive wiring options.

Original post:
2016 aftermarket tow hitch / wiring mounting installation ...

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March 15, 2019 at 10:44 am by Mr HomeBuilder
Category: Wiring Installation