Factory Park Assist Install Problem
 

I'm so close to getting my STOCK Park Assist Upgrade done on my 05. Bumper drilled with sensor's installed, PAM unit installed and wired, OEM bezel with switch installed... I have one problem thought.... when I go to hook up my sensor harness in the back, there's already a harness for my stock 7 pin connected. Is there something I'm missing? If anyone has an actual picture of the rear wiring of their factory equipped truck, it would very much appreciated.

Anybody?