I also got my gs9000 with faulty GPS unit.
It seems to be wire inside the GPS device that is poorly soldered.
Foxoffer soon send me a new model GPS unit, without the error
engelhardt - did you get a new GPS unit free of charge?
I also got my GS9000 with faulty GPS unit and also a faulty cigar lighter adaptor.
Waiting for Foxoffer to send me a new model GPS unit and a new cigar lighter adaptor :|