Last week, we created our own under seat mount for an ARB Dual Compressor. This week, we're going to wire it up. The ARB installation instructions are pretty good, but not specific to a Jeep. I'll be showing you exactly which each wire goes, no Painless or SwitchPros system needed.
Materials & Supplies
- 3' of jumper wire, anything 14-20 gauge is fine
- Wire strippers,cutters, and crimpers
- Assorted wire terminals
- Black tubing for wiring
- Solder gun
- Heat shrink and lighter/heat gun or just some electrical tape
- Socket wrench and 18 mm socket
NOTE: I created a video for this one showing where everything goes. It's more or less explains everything and if you're already comfortable with electrical stuff, you can probably just watch that. It's at the bottom of the article. I'll reference it throughout.
Step 1: attach electrical terminals to two large red wiresYou'll need something that can go around one of the bolts on your terminal block of the batter and can accept that large gauge wire
Step 2: attach electrical terminals to negative wiresBoth the large black wire with white stripe and the small black wire will need terminal connectors too
Step 3: attach large red wires to batteryTake the two positive wires first and connect them somewhere on the battery. You'll want to figure out your routing for the wire bundle first. Getting it in place probably involves unhooking the positive terminal of the battery so you can run the wire bundle beneath the existing wires
Step 4: attach negative ends to batteryBoth the small black wire and the large black wire with white stripe can now be connected to some terminal of the negative side of the battery
Step 5: run the other end of the large wire bundleYou shouldn't need to move the battery tray or batter. It's small enough to just slide down the corner and pop out below. Watch the video at 0:26 Here is what it looks like with the battery removed (you shouldn't need to remove your battery)
Step 6: run the large wire bundle along the frameThe video shows this really well, but zip tie it to the existing wires going that direction. Leave the slightest bit of slack since the body can flex a bit from the frame.
Step 8: remove the drain plugDirectly beneath the passenger seat is a drain plug. Pull back the carpet to reveal it, then pop it out.
Step 9: cut the plugCut a small hole with a slit in the plug to allow for the wire bundle to come up thru it.
Step 9: cut the carpetMake a 1.5" incision in the carpet to allow the large wire bundle to pop up thru. Watch video at 1:10 mark.
Step 10: push wire bundle thruWith one hand beneath the Jeep guiding the wire bundle and the other hand on top where it'll pop out, guide the wire bundle up thru the drain hole and thru the carpet
Step 11: replace the drain plugPut it back in the place, with the wire bundle now coming up thru it. Optional: add some epoxy to help water proof it again
Step 12: remove the dashUse a knife or like instrument to pop the lower dash panels out. Just held in with some clips.
Step 13: run jumper wire off cig lighterStrip off 1/2" of the insulation on the blue wire going to the cigarette lighter. Solder your 3' jumper wire onto it, then wrap in electrical tape
Step 14: run the jumper wire under the dash and carpet, over to the passenger seat areaWatch the video for this part starting at 2:12
Step 15: solder the jumper wire onto the blue with white stripe wireThis will light up the light on the ARB switch any time the key is in the ignition. Remember to put heat shrink on the wire BEFORE you solder. Then slide it in place and heat it up to shrink it.
Step 16: run the red with yellow stripe wire into the main power harnessWatch the video at 1:36 to see where this goes
Step 17: plug it inPlug the male end of the large wire bundle into the female end on the compressor
Step 18: test itThe compressor should now have power. Feel free to give it a little flick of the switch and make sure it turns off. If it doesn't, check all your wiring. Disregard the blue wire with white stripe; that one just lights up the LED on the switch so that's not your issue.
Step 19: clean upUse the black tubing to clean things up, tuck wires under carpet, stuff unused wires under the seat and tape them down, etc.
Step 20: re-install seatLower the seat back down into position, re-install 4 factory bolts using 18mm socket. Get them tight. If over-cautious, feel free to throw some Lok-tite on there.
All right, it's now all wired up. Next week, we'll go over how to make a small plate on which to mount the switch.
Here is how it sits as of now:
Video of it in action