Audio System Failure

Radio silence huh? That's rough. Have you checked the simple stuff first, like the fuses? And what about the auxiliary input? Does anything play through that, or is it completely dead across the board? I'm no expert, but maybe it's just a loose connection somewhere?

Yeah, if you've got nothing from the auxiliary either, it does sound like it could be more than just the bass speaker. A loose connection is always a possibility, but tracing those can be a pain. Honestly, might be worth getting it checked out by a professional. Could save you a lot of frustration in the long run.

Good point about the auxiliary input. How would I test that properly? I tried plugging my phone in, but got nothing. Could it still be a connection issue even if the fuse looks okay?

Appreciate the insight. Turns out, after some deeper diagnostics, it was indeed a defective bass speaker. Replaced it for 280€. Sound system's back to normal. Annoying issue but glad it's resolved.