Hi Guys, hoping someone out there could help me with a problem: I have a Freelander HSE (05 Model) with a Becker Sat Nav Head Unit and a Harmon Kardon Amp under the seat. Some time ago the speakers became very 'tinny' and I lost a lot of the volume. The woofer in the trunk just vibrates. I've checked the speakers which are fine and I have slaved in another amp which made no difference. I know someone with the same spec car with the same problem, he tried another head unit but the problem was still there. Is there anyone who could give me any advice on what to try next please?