this is what he wrote back just incase anyone was interested...
I have not experimented with any ABS sensors, however if it is a 2 wire sensor, you may try to tap onto the high side signal wire and run your new wire (from the high side signal of the sensor) to the SIG terminal of the speedometer. Follow the calibration procedure and see if the speedometer functions. Also check to make sure that this has not affected your ABS system as well for your safety. If it does not function or if it causes a problem, then you may contact Speedometer Service at 414-463-6660 and see if they have a universal speed sensor that may operate on your vehicle.
Thank you.
Cory
Tech/Service
so when i get this thing running i'll see if it works or not...