I am having trouble getting NMEA out of a Greenstar GS2 into an Integra.  It has an iTC reciever on SF2.  The iTC and GS2 are on the most recent software updates.  I have a cable, I believe a PF90350, TEEd at the receiver to bring the 9 pin serial in the cab.  I set the serial output on the GS2 to 38,400, VTG, GGA, 5 Hz.  I have tried using a null and not using a null cable.  I got nothin'!

 I called Geenstar support and was told to use a PF90363, it will be a few days before I can get one.

 I know this has been discussed at lenghth on here in the past but can someone shed some light on this.  Thanks.