I'm trying to help a friend (I know, that's what they all say) obtain a proportional (as opposed to time based) trailer brake controller as soon as possible. And I'm doing this remotely, as he is in...
FWIW, I recently got a Curt 51180 ECHO Bluetooth brake controller. Best part? No installation and NO wiring and it works. I love it. Bit pricey but worth it.