So being a newb to GPS and the likes, I've spent considerable time trying to get my GPS system to work. I thought a misassigned COM port was causing the message from the USB Earthmate antenna to not make it back to the carputer as I seemed to NEVER acquire a signal. In desperation, I checked out Delorme's support area and found that they are aware that certain Delphi XM radios have insufficient shielding and it's causing a conflict with the Earthmate antenna. So I unplugged my XMD1000 knowing full well it wasn't going to have any affect (boy was I wrong!), and within a second, I'd acquired a 3-D lock!
May others learn from the time I wasted on this!!! Here's the link.
http://www.delorme.com/support/earth...=&P=17111&C=28 Now I just gotta figure out where to mount the antenna so it doesn't conflict with my XM!