Hello together, I’ve been installing a Pioneer Radio, a Mac Power Amp (2x 200 Watt) and a Mac Subwoofer (max 800 Watt) in my Golf 4 (year 2001). Everything was nothing special. The whole thing worked well until I had a vacation and the car stood around for 2 days at a time (otherwise a lot is moved every day). Something has pulled me out of the battery until nothing more went on. Battery is almost 1 year old. On note from a colleague it could be the radio -> Radio plug rough My questions now: 1. Actually the power amplifier should go out thanks to remote cables? (you also hear a “plopping” from the sub as soon as you pull the key) Do I still have to change something on the cables from the radio? By the way, use a normal adapter plug to connect the radio. 2. If it is not at the interface between radio and power amplifier li egt, I had the idea to insert a switch (to interrupt the circuit) into the power cable of the power stage. Good idea? Have somehow the fear of interrupting the circuit could not get the components well. And if someone has a concrete suggestion for a suitable switch? Have DIY + searched an ATU + Internet and found nothing besides lamp switch for home. Thank you already in advance