Tail light wiring??

[OTR]

Does anyone know what wires to tap into for the rear break light on a truck cap/canopy for the 3rd break light? I've been searching for 15 minutes with no luck.
Thanks

[mendonsy]

Here is the wiring diagram for the brake lights:
http://www.tundrasolutions.com/forum...top-lights.pdf

[OTR]

Here is the wiring diagram for the brake lights:
http://www.tundrasolutions.com/forum...top-lights.pdf

Thanks for the wiring diagram. Can anyone decipher which wire is what for the break light and a hot wire for the overhead light.

[mendonsy]

The best way to do it is capture the wires that go to the light on the back of the cab. You can get to them under the driver's side door sill. The bed light is brown, the stop light is red, and the ground is black & white. The wires at the back are both brake and turn signal, so they won't do what you want. I have a double cab, so I mounted a switch under the back seat to switch between the cab and cap.

[OTR]

Thanks for the info and the tip. Have a great day.