i hava a 2001 x30 and a few years ago i had perfect pass installed. ever since the shop put it in it never worked right, and now it doesn't even work at all. we used to be able to use the rpm's to tell the speed, but now that wont work. I have the original speedometer and would like to put it back in its original place. but in order to do this i will have to take the perfect pass out. does anyone know how to do this? do i have to remove the dash, and if so how do i do that? also anyone have any suggestions on what is wrong with my rpm gauge?