Also, my player is in home mode but I still see GPS in the Hijack menu. Does that mean the "incar" test in the M50gpsapp script didn't work?

More info. Serial port when booting says:

player.cpp : 385:empeg-car 2.00-beta13 2002/07/24.
: command not foundd/M50gpsapp:
: command not foundd/M50gpsapp:
: command not foundd/M50gpsapp: exit
: command not foundd/M50gpsapp:
GPS app started
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Tony Fabris