Hi everyone!

I just acquired a 2005 F-150 FX4, which came from a used car dealer, who got it at auction. So, I have essentially no historic info on the truck beyond some Carfax entries. Anyway, the truck has an aftermarket third brake light, which has no cargo light. It's also broken, so I have a brand new OEM light, which I was about to install only to find that a previous owner cut the car-side harness and just twisted the wires (except the cargo light) to the aftermarket light. Now I'm trying to figure out my options - cut the light-side harness off, too, and twist the wires together or put the right connector on the car-side wires. But I don't even have a wiring diagram.

Does anyone have any suggestions for how to proceed?

Thanks much!

 

Go to the junk yard and cut the pigtail off of a matching vehicle. Then solder and shrink tube the pigtail and harness together. That's what I'd do.

 

go to Rockauto and look up your year and under electrical connectors, high mount brake light connector. $34

 

Here is a link from Rockauto.com for the needed connector.
More Information for STANDARD MOTOR PRODUCTS S2429 (rockauto.com)

 

My memory must be slipping because I don't remember mine looking anything like that.

 

Here is the one from Motorcraft on Rockauto for a 2008.
More Information for MOTORCRAFT WPT1035 (rockauto.com)

 

I just bought a 2004 F150 FX4 Styleside with lots of aftermarket lights… Ugh! I’ve replaced all of them with OEM except the cargo light. This post is very helpful,thanks!