Tail lights
I wanted to make maintenance easier for removing the bed so I didn’t have to cut any wiring. To do this I used a 4-way trailer extension cable to make a plug and socket for the tail lights at the end of the bed. If you really wanted to do this correctly so you could add on a trailer plug for towing you would want to use a 5-way trailer plug and socket but the cost of that was more than I was willing to spend right now as a 4-way plug served the purpose I needed.
Tool and Parts
Truck Wiring
| Wire Color |
Signal |
Watts |
| Yellow |
Left Turn/Brake |
27 |
| Dark Green |
Right Turn/Brake |
27 |
| Brown |
Running Lights - Side Marker/License Plate, Low Brake |
40 |
| Light Green |
Reverse |
54 |
4-pin Trailer Plug
| Wire Color |
Trailer Signal |
Truck Signal |
| Yellow |
Left Turn/Brake |
Same |
| Dark Green |
Right Turn/Brake |
Same |
| Brown |
Running Lights |
Same |
| White |
Ground |
Reverse |
5-pin Trailer Plug
| Wire Color |
Trailer Signal |
Truck Signal |
| Yellow |
Left Turn/Brake |
Same |
| Dark Green |
Right Turn/Brake |
Same |
| Brown |
Running Lights |
Same |
| Light Green |
Reverse |
Same |
| White |
Ground |
Ground |
7-pin Trailer Plug
Wiring up a 7-pin trailer plug will be hard since the signal for the turn signal and brake are handled inside the steering column switch.
| Wire Color |
Signal |
| Yellow |
Left Turn/Brake |
| Dark Green |
Right Turn/Brake |
| Brown |
Running Lights |
| Light Green |
Reverse |
| White |
Ground |
| Red |
Aux 12 volts |
| Blue |
Trailer Brake |