2001 S-10 Blazer trailer wiring

I have a 2001 S-10 Blazer and would like to install a Prodigy electric brake controller. Problem is, I can't find the wires to install it. I was told by Tekonsha that they are bundled under the panel to the left of the driver (no plug, just the wire ends). I have had this panel apart and cannot find them. Any input would be appreciated. Thanks!

They will either be under the carpet of the driver side rear wheel hump, OR under the rear driver side frame rail underneath the car.

They will either be under the carpet of the driver side rear wheel hump, OR under the rear driver side frame rail underneath the car.

Thanks rlith...but maybe I wasn't clear enough. The back end of the wiring harness was easy enough to find and have connected a plug beside the hitch already. It's the end that supposedly is under the panel near the driver that I am looking for. I need to find the end that the electric brake controller module connects to...dark blue brake wire, etc. Has anyone else installed their own electric brake in the 2001 S-10 Blazer that could help me out?