Just got my new 500 Abarth auto (non-Beats audio) 4 days ago and I love it, but I found a problem. When the car is on (engine running or engine not running with key in acc/on position) and I'm listening to music, the large driver side speaker doesn't work, and there's no bass from the whole left side of the car. But when I turn the key to OFF all speakers work as they should. Anyone know what could be causing this? And yes, I already made sure audio balance is centered.
So obviously something is killing the signal to the speaker once the key is turned from OFF to ACC/ON. Maybe there's a faulty relay or something? Can anyone link me to the wiring diagram?