I'm going to assume not.The car kit or home kit antennas will work on either as far as I know, but the internal car kits (ie the one in the stock vibes) would use a module connected to the radio as a controller instead of the portable aftermarket ones. If I were to venture a guess on how to make them compatible, you'd probably have to hack apart the antenna itself and get the proper connection on it to go into your sportster.