I'm installing parking sensors in my 2002 F150 SuperCrew and to power the control box, one of the wires needs to tap into an ACC line. The control box is located near the driver's side tail light. I was wondering if there is a hot line near there or the hitch. Does anyone know? Thanks.

 

The only hot in run position in the back of the truck is the in the 7 pin trailer tow adapter for the battery circuit.

It is labeled aux in this diagram :



Aside from that, there is nothing under the truck you would want to splice an after market device into.

 

If you want to add a dedicated circuit for it, read these captions:

 

I ended up just tapping into the tail light. So basically it only works when my lights are on. I usually turn my lights on all the time any way out of habit. And hey, now my sensors have an on/off switch