PIE has an adapter that plugs into the wiring harness at the rear of the headunit.
Link To PIE Ford Aux Adapter
I have used one of these for years in my 05.
I have an 05 that does not have the original 7 pin wiring that would have come with the HD tow package. I have added a 7 pin “4 to 7” pin receptacle to the existing 4 pin receptacle and bolted it to the 4 pin mounting tab. There should be an additional blue wire in the rear trailer harness...
What is the easiest way to read transmission temperature on a 05 Expedition 4R75 tranny? Does the transmission already have a temperature sensor? If so are there any show stoppers to reading tranny temperature with one of those ODBC display units?
Chevy, you can just install a new "reverse relay" in the rear of the vehicle. You could use something like the rear 12 v accessory socket leads for power and trigger it by tapping into the backup lights. That way the wife should stay happy because you almost stayed within her zero dollar budget...
I have a 2005 Non HD tow Expedition that I use to tow a boat trailer with surge brakes. In order to energize the reverse lockout solenoid on the trailer I have tapped into the reverse lights and fused the connection with a 3A fuse (the solenoid draws less than 1A). In reading the recent post...
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