I am not sure of the idea of installing this feature on an older car, but I can recommend actually driving a car (I assume that 200SX had it?) that has it before you spend a lot of time trying to install it.

I have 2 cars, a porsche and a mercedes, becker and bose (respectively), that have this feature. I have yet to figure out how to turn that annoying feature off of the in the Mercedes. I did finally manage to turn it off on the Becker in the Porsche... and I much prefer it. I really do not enjoy speed sensing at all.

When you are talking to a passenger it moves up and down and is distracting. The only time I can see that it would benefit is when stopping at stop lights. However, in both cars, it does not lower enough to not annoy the others around me (top down, windows down, etc), so i end up manually changing it, anyway.

[Edited by porsche on 06-05-2001 at 07:20 PM]