I have a 2012 CX-9 with Bose Centerpoint system that I thought was a decent stereo until I drove my wife's car with the Bang & Olufsen (sp?) system...wow. So knowing average knowledge of car stereo systems I was wondering if anyone has upgraded their system. I have zero issue in something that will shake my car when playing with massive bass more want concert like sound. Is this worth attempting or will the benefit not outweigh the expense?