Here's the wiring guide used for 06-08 trucks. 05 and post 08 use different diagrams.
http://i48.photobucket.com/albums/f210/ ... RamH13.jpg
Step 1: Unbolt old headlights (10mm) and unplug factory light plugs
Step 2: Find a place to mount your relay. Since the supplied harness didn't come with a very long power wire I needed to mount it somewhat close to the battery. I mounted it to the right of the fuse box with a #10 sheet metal screw (after drilling a pilot hole).

Step 3: Plug in the harness plug into the factory headlight bulb plug and mount the capacitor. I zip tied my harness/headlight plugs together because I broke the retaining clip on my green headlight plug. Oh well...

Step 4: Run the passenger side headlight wires. I chose to run mine underneath the crossbar directly in front of the radiator that the hood closes to. It seemed the "cleanest" to me. I used plenty of zip ties in the process.

Step 4 continued: Running the passenger wire...

Step 5: Run the wires for the 2 resistors/resistor grounds. The resistors have heat sinks on them because they get really hot when the HID's are running. I wanted to attempt to get them some airflow so I mounted/grounded mine on the crossbar above the winch/in front of the radiator and ran the wires tucked into that crossbar to make it look cleaner.

Step 5 continued: Running resistor wire...

Step 5 continued: Resistors mounted with supplied screws (after drilling pilot holes)

Step 5 continued: Resistor wires grounded on crossbar (sanded the area first and grounded with #10 sheet metal screws).

Step 6: Mount driver's side ballast and ground ballast wire/hook up wires to ballast. Took me a while to find a spot to mount the ballasts that wouldn't interfere with the headlights when they were mounted. Finally settled with mounting them on the sides of the crossbar next to the radiator. Was going to mount them on the front of that crossbar but the clearance was too small to allow me to mount the headlight. The ballasts are hidden by the grill when you look from the front. Drilled pilot holes and secured with #10 sheet metal screws/washers.

Step 7: Mount passenger's side ballast and ground ballast wires/hook up wires to ballast. Mounted same way as driver's ballast.

Step 8: Plug in all wires to their correct places (AFTER using copious amounts of dielectric grease on everything!!!) and then plug the harness/factor light plugs into new projector headlights. Install headlights.
Step 9: Remove negative battery plug (1/2"). Remove positive battery plug (1/2"). Install power wire on positive battery bolt (ran my power wire behind the fuse box and behind battery). Re-install positive terminal nut and tighten. Re-install negative battery plug and tighten.

Step 10: Close hood and turn on the lights. Enjoy.








