3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
I decided to draw up a wiring diagram for those that are interested in adding reverse light to your rig. This is how I see it when I look at it. I'm sure it can be done many other ways, but mine works perfect. I used 14ga for everything and 2-40amp relays. 30's are fine. i just had 2 40's lying around. Just a standard automotive relay, whatever is convenient and cheaper. A 10amp fuse should be installed as well for 35/55w lights.
Now, the lights will only come on when the headlights are on which is why I wired it like this to avoid the reverse lights being wasted during the day. Chances are that your not going to need the lights when your headlights are on.
As for the reverse light wire. Mine is an '08 and mine was the white/green stripe and was located under the hood and on the driverside towards the firewall. I used a T-tap and put dielectric grese in it before i squeezed it over the wire. The headlight switch on my H13 socket was white/dark Blue stripe. I wanted to keep the splicing under the hood instead of putting it out in the weather underneath the truck somewhere. You can certainly access any of the wires from the rear, but I'm a corrosion freak. I use all heat shrink connectors and I squeeze some dielectric grease before I heat them up. Then just wipe off the excess. I fished the power wire for the light through the stock convoluted tubing. What a PIA. i did have to use zipties when i went behind the gas tank. No flopping wires. Keep them secure so they don't chafe.
I grounded each light individually to the bed frame. figure 12" wire for the ground leads. I used a self tapper as the metal is thinner there. i squirt some dielectirc grease over the whole screw and around the base. give it a good coating. It'll stay on there for longer than you would realize unless your pressure washing it directly??? It helps keep the screw terminal from rusting and having issue's with the lights later on.
I also peeled the rubber boot back on the backside of the forglights I used and swuirted more dielectric grease all in there. That tire will be kicking up a lot of water and snow. I wanted to make sure they had no issue's. Just another reason if your buying lights to get sealed housings like tractor lights.
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I want to see some finished results Dog. The wiring sounds good glad to hear someone also has wiring OCD too.
I already had posted them. They are HERE Just scroll down till you get to them as I have my other lights posted as well.
You can use any lights you want and mount them anyway. I think mounting them ontop of the rear bumper in front of the brake light is the best spot. it's just sorta an eye soar is all, so i tucked mine up underneath and it def limits the range, but you cannot see them at all unless you look under the bumper. But you can see in the blurry pic that the light shines out prob like 30ft back from the truck where as stock lighting was only 15ft if that.
Yeah those lights look good I plan on doing something similar to that setup in the future except mine will have a different mounting setup with a form of protection for rocks. Nice install looks really nice and stealthy.
__________________ THIS IS MY RIDE: 2003 RAM 2500 3" PROCOMP 35X12.50 TOYO M/T SUPERCHIPS 3815 MAGNAFLOW CATBACK AIRAID INTAKE Trucks with camper tops!!! Member #3
Just tackled this project last night and it was a fun modification! Good inexpensive project for awesome results. Thanks for the guidance DD. I ended up wiring the reverse lights up to their own LED switch using the 2x3 popout provided. You end up laying on your back for awhile...haha. Look forward to the next mod!