Thanks, I'll take a look there. For now, I feel pretty stupid. I wasn't aware that rental car trailers come with HYDRAULIC brakes. /forums/images/graemlins/rotfl.gif
Still, I'm planning on hooking this one up, and upgrading once I have the need. For reference, in case anyone else runs into this trouble, blue is to the trailer brakes, red is to the brake switch on the pedal, white is to ground, and black is to bat + (fused of course).