I have an aftermarket gauge package with VDO gauges, cockpit series I believe, and my speedometer quit working after making a "sprung" noise and the needle moving counterclockwise two full turns. My cruise still works fine though and my mph on the scanmaster reads correctly. Because of this, I don't believe the cable is broken. It appears that mechanical VDO gauges are not available. I'm fine going with autometer despite that it won't match my other gauges. Question is, is the VSS a part of this aftermarket speedometer or can I just get a new mechanical gauge and drop it in? Any certain specs I should look for? The only VDO replacement I can find is electic. And of course I have a spare speedo cable but that isn't the problem...