Hi All. I know this has been discussed in the past, but I can't find my "blue plug" for the electric trailer brakes. I have a 2005 1500 quad cab 4.7 6sp. ST (base model). Could the ST wiring be different that all of the others ? I have followed the harness from the firewall to the back of the insturment cluster with no luck. ANY thoughts. THANKS

 

Blue plug should be under dash next to the E-brake if you have factory tow package I think.