Originally Posted by MBPrincess

Hello
I had a clarion navigation unit installed on my 98 ml320, they gyro works but not the car doesn't move on the map, i took it back and they said that unit needs to be connected to a speed sensor and that my car isn't equiped with one.....i was told i had to get a universal speed sensor that is connected to my wheel somehow and that it would run me 300 installed.
Is there any other way to install this? or are they correct in what they tell me? I came on here to ask because they really didn't seem to know what they were talking about...
any help would be appreciated!
thanks!!!