[SmartCarFriend]

I recently had a new issue start with my 2009 Fortwo, which has progressively gotten worse. When I start the car, the speaker by the driver side starts to go into overdrive with bass. I checked the bass control and it’s on zero. I figured I don’t need the radio, so I would just turn it off but the speaker continues with the extreme bass. Even if I turn the car off, it still keeps going. After driving for 1-3 minutes it finally goes away but I’m worried I’ll soon have hearing loss from dealing with this every day, it’s that bad. What exactly could be causing this?

 

[wahi]

Are you sure it's the door speaker? Usually, it's the subwoofer (optional equipment) that gets shorted out. See if you have one underneath your seat. If you do, disconnect the woofer wiring and all would be good. Attached is my dead subwoofer...