Greetings! My brother recently passed away and left me his 1991 300zx TT. I always loved the car but am finding that I know little about what he did to it while he had it. I am having some issues with what we first thought was the master and slave cylinder in the clutch but $500 later still having the same problem; can't switch gears, can't get it in gear if its in neutral. What I do know about the car is he had the suspension lowered, he put in a Pioneer stereo, and a few years ago he replaced the engine with a 440. There is also a higher tail fin on the back and some very nice rims that he must've put on too. The radio works but no sound is coming out...I can only assume some wires have been messed with because I found a huge speaker box that may have been in the back of his car at one time. SO.....I need some advice regarding why I still can't get the car in gear and how to get the sound to work...