I actually helped a local member with his replacement regualator tonight. Also wired backwards and also tipping forward. His cable on the front most mount was very loose and I believe is what was causing the problem. The cable should be taught and have very little slack in it and I could pull his out from behind the bar of the regulator. He also had the glass in the channel on the rear of the door frame, but not in the rear channel that was inside the door. This was causing it to bind up and may have stretched the cable causing it to become loose. Either way, there is no way to fix it as you can not tighten the cable. Honestly it could just be the reason these aftermarket regulators are so cheap.