[Cecil]

Already have the hitch. Where's the best place to tie into the existing wiring on the Sprint for turn signals and running lights? Will I need a larger flasher? Not planning on towing anything for a long time, but I'd like to do this as right as I can.

Thanks...

 

[pmullaly]

Here'sthe way I'd do it. First Go to NAPA and pick up 5 Weatherpak connectors(late model GM type.) You'll need the 4 or 5 socket ones. Inspect your harness for how many wires you have. Discount the brown wire in the harness cuz thats the fuel sender. At the left rear corner is where to locate the harness.
What you'll do next is cut the wires on forward side you'll install the pin side & the socket side on the rear harness. This will give you a clean disconnect point.
With the other 3 connectors you'll make a splitter. One end to plug into original harness forward side,one to connect to rear side of harness,and the last heading to the trailer disconnect.
Confused?? I'll email you a scan tomorrow.
Yes a heavier flasher will be needed

 

[Elree Colby]

This is the tail end of an intermediate harness and the leading end of a rear lighting harness. Splice the wires together/modify as desired for trailer lighting. On the El Camino or Sprint you can access the connection of the intermediate harness and rear harness by removing the left rear bed access panel. The new wiring installs between the existing connectors. No splicing if the original wiring and can be removed anytime.

 

[pmullaly]

oops I didn't realize there was a disconnect there.
I thought the harness was one piece from the plug in the cab on back