Hi motor talker, I report here with a problem that probably sucked up my battery. I have installed a power amplifier and a bass roller in the car, I have installed a 16mm^2 cable as a + cable from the batt. in the interior to the power amplifier in the trunk. On the other side of the car, in order to avoid noise, I have installed the Cinch and remote cable and connected to the power amplifier. The remote cable is connected to the remote of my radio, I can a The subwoofer can be switched on via the radio and switched off but the power amplifier does not turn off. So my problem now is that without a cable from + to remote the power amplifier does not turn on at all. And if I put this cable from + to remote, then the light at the power amplifier is permanently on, even if ignition, etc. is off and the car is closed. Now I have two questions: 1. Is this normal? Bzw. must put the cable from + to remote? 2. Would it be an option a To install switches in this + cable, so that I can pull off the juice at the push of a button and thus be on the safe side? If so, what kind of switch should I use for this? I would like to thank you for suggestions.