I took my '84 300D to a professional shop looking into a new radio/cd/speakers system and after some head scratching they said they needed to do a little more research having not done any similar installations. Rather than "reinvent the wheel", can someone simplify this agonizing process by recommending a radio/cd/speaker system? We basically need to be pointed in the right direction. I understand that the fader wheel will likely have to be bypassed, but are there any other issues to be concerned with? I'm not looking for one of those mega-sound systems, just something of quality that is not a nightmare to have the shop install. Thanks!!