Sound system upgrade for W164 2006 ML 350
I have a 2006 Ml 350 that comes with a comander sound system.This media center is the base system, and has a acceptable quality, but is lack of bass. I'll like to upgrade it, and in the net i found an Harman Kardon Subwoofer and an HK amplifier, but the local dealer can't tell me if the upgrade is possible.
does anybody know somethig about it?
thanks



