Suggestions for 12V power source for portable tire inflator

[RNAV]

I'd like to figure out a way to have a 12V power source near my rear bumper, and I'm hoping you fine folks could come up with some innovative suggestions. 

 

I have a 12V tire inflator that I use to inflate my horse trailer tires.  The tire inflator uses clamps to clamp onto the positive/negative battery terminals under the hood (similar to jumper cables).  Due to the available inflator power cable length and hose length, I have to pull my truck nose-first to the trailer in order to be able to reach the trailer tires.  Then I've got to flip the truck around to hook up the trailer.  I've considered longer cable / air hose, but neither will not fit in my existing inflator storage bag (and risks not being able to fit in rear under-seat storage).  I'd also like to avoid having to pop the hood altogether -- I'd rather just back up to the trailer and have a 12V power source in the rear to which I can connect the inflator power leads.  I've also considered getting a 110V AC tire inflator, but they all seem pretty crappy and why buy another inflator when the one I've got works great?  

 

I realize I can simply run some power leads directly from the battery to the rear bumper, but I'd prefer a more finished factory-like solution.  Also concerned about having bare cable leads exposed to the elements.  

 

What are your ideas?

[wepiii]

Tap into the 12v trailer wire


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[Gray Fox]

https://www.amazon.com/Reese-Towpower-78119-Adapter-Built/dp/B0049MVDZG/ref=sr_1_11?dchild=1&keywords=trailer+wiring+adapter+7+way+to+lighter&qid=1613189925&sr=8-11
 

[RNAV]

10 hours ago, Gray Fox said:

https://www.amazon.com/Reese-Towpower-78119-Adapter-Built/dp/B0049MVDZG/ref=sr_1_11?dchild=1&keywords=trailer+wiring+adapter+7+way+to+lighter&qid=1613189925&sr=8-11
 

That's interesting.  Thanks!

[mandrewbot3k]

I suppose it depends on the  power draw, but yeah, you can use the trailering provisions to tap into, or you can run a lead from the fuse box and add an additional port to the rear, rather than just have exposed leads. I believe there are a few grounding points in the rear already, so you'd only really need to run the positive back from the fuse box into a waterproof panel in the bed/bumper

[poludy]

I cut the clips off and installed a 7 pin trailer connector in their place. Works great for me