I have a 06 LT with the VOICE II system and a PTT switch already installed. Is there any one that makes a connector cord that goes from a single plug on the Uniden GMR 638-2CK, to the 2 plug system for the VOICE II. I have a pair of these units and they work great from car to car up to about 1 mile. After that it all depends on the terrain. I think they would work even better on a motorcycle.