Originally Posted by EdmontonRam
Thanks for the fast response.
Is there any way you could show or tell me how you wired up your relay and where you grabbed the trigger wire from ?
Edit: I would be willing to PayPal you some beer money for your effort ?
Well I can't show you as I no longer have the truck.... but I can explain it to you the best I can.
First off, have you ever wired a relay before? They are very simple to do, the relay itself actually shows you what wires to hook up where (in a way).
There's 4 (sometimes 5) prongs on a relay. Two of them are for your straight through power (from the main power source to the item you want to turn on) and 2 of them are for your switch. For my set up I ran power directly from the bolt on the TIPM, through a fuseable link, to the connector on the relay labelled "30". Then from the connector labelled "87" (directly opposite from your main power wire) I ran the wire to the compressor. Now the other two prongs left (85 and 86) are for the switch. One of them needs to be wired to a ground source. The other to a keyed source. To find a keyed source just get under your dash with a test light and see what's on keyed power. I believe I tapped into the control for my 4wd. It was the easiest one to get to and I knew what I would be tying in to. If you have 4wd just pull off the center bezel and test the wires that go to it... one of them will be keyed and I just spliced into it.
As far as mounting the relays go, I just built an aluminum bracket that bolted to the same spot where the battery tray bolts too and screwed the relays into it. That way it was a nice, clean install.
Hopefully that answers most of your questions. If you need anything else just let me know.