Hi, Just got 87 300SDL 185K miles, love the car, some questions. During acceleration when turbo kiks in I see a lot of black smoke in the back , Is this normal? When turn ignition, aux fan kiks on, AC does not engage. Do you need to adjust timing? When cold you can realy feel the kik from the turbo, when the motor is warm it seems sluggish (what can it be?) And how do you conect the power antenna to aftermarket cd player? I have 2 extra wires and tried both of them and nothing happen, with original deck the amtena works. Please help. You guys are awsome! Thank you.