I too have a black 911 and high gloss piano black speakers. I don't touch the speakers and never put anything on them and tell the cleaning people to stay away from any equipment, cable, speakers, etc.
Also, I don't look closely at them or I would start to touch them and even touching them (or the paint on a car) can scratch it.
Maybe if I see any dust I will use a duster for the car that doesn't scratch.
Agree with the P21S for wax and also try their paint cleanser and 3M hand glaze for the car. Also, don't drive in the rain.
Also, I don't look closely at them or I would start to touch them and even touching them (or the paint on a car) can scratch it.
Maybe if I see any dust I will use a duster for the car that doesn't scratch.
Agree with the P21S for wax and also try their paint cleanser and 3M hand glaze for the car. Also, don't drive in the rain.