I've recently got a Titanium TDCi 2013 model which I believe is MK7.5 with the Sony DAB stereo. I'm pleased with the car overall but not overly happy with the sound. I find whenever the volume gets above 20 the bass is distorted and the speakers start 'rattling'. I see that Ford offer an upgrade of a Pioneer under seat sub, has anyone had this done and does it solve these bass problems? Is it advisable to upgrade the door speakers? Can the sub be installed and then bass stopped from coming out of the door speakers?
Basically I'm just looking for some advice from anybody who has done or had any sort of upgrades on this system.
Thanks in advance.