I put mine right next to the 7 blade RV cord hookup on the truck. I have it wired to the same ignition hot wire that my TransferFlow in-bed auxilary fuel tank is wired to. As long as my truck is on, the repeater is on.
Edit: Just realized this is in the motorhome section, so my pickup truck location probably doesn't help you. My bad.
2014 F350 DRW 6.7L CC FX4 King Ranch Ruby Red Metallic 158,000 Miles 4,450 Hours
2018 Cherokee Grey Wolf 29TE | Because I'm home, no matter where I am.
2018 Honda CB650F | Because the truck leans the wrong way when I turn.