Thanks in advance for any help. I'm on my 3rd MKIV and it is starting to show signs it's dying. I love the look of the factory install, but this may very well be strike 3 for the MK4.

It is not seeing any satellites, although it seems to come and go. i did check the connection for the antenna and even tried a sirius antenna to see if it would help - nothing. System diagnostics confirms it is not seeing any satellites. s/n = 0.

Since I have 2 other units sitting around, I may try to see if I can change out the Trimble GPS Tuner from one of the other dead units. Might also try the battery disconnect as some have suggested.

Any other thoughts?