Hi,I just happily be a new member.I had a nakamichi in my 1991-Ls 400.The sound went out to the rear left speaker,the center sub woofer and the right front tweeter only.I got this car 3 months ago and I want to keep this system because the Nakamichi of my wife ES 300 is incredible.Any one have any advise how and where I can have it fixed?.All advises will be greatly appreciated. Thanks.