Kyle-
Yours might not be the same issue. If it truly is just a lack of distance from vehicle there is a TSB. In a nutshell, it has to do w/ the length of the wire from the remote antenna in the driver's side A-pillar. You can easily do a modified TSB yourself by exposing and the length of wire needed from the harness insulator (see solution below). That should work - it does on most 986s. If need be, you can do the full TSB (again DIY) by trimming up the antenna wire to the required length (from the black sheilded portion) and again exposing outside the harness insulator.
Here a link to when it was discussed before - solution link is in my post (#2)
Remote Extender Hack