It's a diesel Peugeot 106. The battery is only a few years old. The doors were open for about an hour and a half, so the interior light was on, and I put a live feed to the head unit. Was it the light, the new speakers or the live feed that killed my battery? Or something else?Why did my car battery die when I changed speakers?Did you short circuit the battery accidently when you installed the speakers?
That might be the case
