Hopped in my car this afternoon, fired up SD, and amazingly, it found the GPS puck. Navigation now works, but I am experiencing the same ~10 second delay in tracking that others have described with the BU-353 on these forums.
There doesn't seem to be a solution to the delay problem that I can find. Does anyone have any advice? The delay occurs in both SD and CoPilot, so I don't think it is either program, but the GPS or the GPS serial to USB software causing the issue.