I have a mp808....Auto vin cant decode the vin on gm vehicles.....when I use the scanner on gm cars....it will try to read the vin...then stop..ask if the car has a certain option...read a little more of the vin....then stop, ask about another option...read a little more of the vin,...ask about another option....and it does this on any gm product.....shouldn't the scanner be able to decode the vin and options on its own?......my snap-on scanner decodes the vin without any trouble.....anyone else ever have this problem....or know how to fix it