Eric_Phillips
Platinum Member
I am planning on installing a brake controller on my 2013 Toyota Sienna. When I had the van wired they brought the brake and 12V lines up under the dash. The 12V line is tied into the line feeding a fuse box under the dash. The brake line is just waiting for the controller to be attached. When I install the brake controller can I tap into the same 12V line feeding the fuse box or do I need to run that line directly to the battery? I am hoping to find a screw under the dash I can connect the ground to.