VisorCentral.com (http://discussion.visorcentral.com/vcforum/index.php)
- Springboard Modules (http://discussion.visorcentral.com/vcforum/forumdisplay.php?forumid=10)
-- external GPS (http://discussion.visorcentral.com/vcforum/showthread.php?threadid=5385)

Now that GPS is 10 times more accurate (and more valuable) as a result of Clinton disarming selective availability at 8pm EDT tonight, it would be nice to have the HandyGPS available. Since it isn't, the best way I have found to connect my Garmin 12 GPS to my Visor is by using the EFIG springboard module (it has a RS232 port).

Is there a web address for the company that makes the module?

The EFIG Springboard Diagnostics Module is at efig.com

see this thread: http://discussion.visorcentral.com/...TML/000192.html