I need to disconnect the auxilliary battery in the Mercedes E320 CDI (2003). Where is it exactly, I believe its in the engine compartment but I can't find it. Anyone know?? (This is not the main battery I'm looking for, I know that's in the boot)
Is there one, of so where? There is a button for auxilliary inputs, but I can't find a socket anywhere. I want to plug in my mp3 player instead of using a little FM transmitter..not very good.