[lightsource]

I was installing a greddy boost controller yesterday, I had my positive disconnected from the battery (not the neg.) I connected the power from the boost controller to a wire under the steering column, a thick blue wire I cut, attached a wire to, tapped into that wire with the boost controller and voila.

I grounded the boost controller to a screw in the chassis floor, I turn the ignition on and the controller turns on, but the only problem now is that my climate control doesn't work, no heat, no cold, no air. And my stereo doesn't work.

Could it be anything other than a fuse?

Because I was thinking if it's possible to have a bad connection between the wire I cut and the new one along w. the coupler that I installed on it.