I ran my tail light & break away wires through the firewall. With the hood open, look for a black rubber plug, toward the top/ center of the firewall. Pull it off & cut out the center of it. I ran my tail light wires, through the interior panels, thresholds, kick panel, up & over the brake & steering, & out the hole. I pushed the break away plug & wires, through the plug, then I ran the tail light wires trough the other way. Then I pushed the plug back into the firewall. I pulled the trim panel off the side of the shifter console, drilled a 1/2 in. hole, in the bottom cubby hole, under the shifter, & pulled out enough slack to reach the brake unit (your Brake Buddy). When not in use, I roll up the wires & stash it in the cubby hole.
2016 Jayco Precept 35S
2009 Honda CR-V EX-L