I have an '04 Explorer, 4.6l V-8 w/class III receiver from the factory. I have a pop-up trailer (approx. 2800lbs) w/electric brakes. Can someone give me advice as to what brand of brake controller is the best and tips on how to install it? I wasn't sure if Explorers come with any pre-wiring installed from the factory? Any help will be apprciated.
A Tekonsha Prodigy will give you the best bang for your $$$; get it with the plug-n-play harness for your Explorer. The under-dash connector is bitchy to find. Drop/remove the glove box and then look behind/up/toward the center; the connector (gray or white, 3-over-3 with 5 wires to it) will be taped up there. You'll still have to run the wiring to the driver's side. Good luck!
If you have the tow package (2" receiver with 7-pin RV connector) and nobody's messed with the fuses/breakers required for towing, you're all set. I used a long tie-wrap to pull the harness over to the driver's side.