I have one 12 inch sub in my car and recently have been having some problems with the amp. If the RCA wires are not connected to the cd player the amp stays on and no problem. But as soon as the RCA is connected to the cd player the amp is constantly turning on and off when i turn the volume up but when the volume is very low the amp stays on even with the RCA connected. I am positive it is not the RCA wires because i tried using another pair of RCA wires and it still didnt work.

Car Audio & Video - Lanzar - VIBE266 Car Audio Amplifier