Aftermarket, Ford Sanctioned under bed air compressor.

[SoCalMike]

Thanks! What wiring did you use from the end of the loom to the battery? It's way too long of a run for just the loom alone. Were you able to find something that was already wrapped?

Yes, on page 3 there are a few options for extension kits, I got one that was 25ft long and I had to cut maybe 7 feet off, it was still too long. Length depends on your route though.

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[SurfRanger]

Anyone have a snapshot of the location of the AUX wires for the compressor under the tub? Also read that both AUX 3 and 4 are brown unlike what's stated in the manual.

I finally got all the parts and hopefully have time next weekend to install this.

Just so happened to have taken a photo when i did mine. Brown ones are positive, one is aux 4 one is aux 3. (go to purple switch wire). Power from this wire (which is triggered by flipping the aux switch in the cab) is powering the relay in the compressor to allow the power to pass from starter battery to compressor. For low powered items like say a some lights or something, you could use this positive as your power supply (and switch if you want to think of it that way). To determine compatibility thats where the amp ratings int he manual come into play compared to whatever you are trying to power.

 

[mtesni]

This was all I used. Purple went to brown wire by tow hitch (Aux 4).

This is similar to what I did as well. Ran the purple wire from the compressor to the factory Aux wiring. Then ran the 2 power conductors to a fuse block I have mounted up near the spare tire. This fuse block is fed with 4awg from the battery, the compressor draws far to much power to be connected directly to the Aux wiring.

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