I took my Z2/3 out today to hook up the PAC steering wheel remote. Doing this required complete removal of the unit. Every wire was unplugged.

When hooked back up, I'm getting a bad GPS location; about 1 mile east of where I actually am.

I pulled it all back out, confirmed it's all plugged in, and no wires cut.

When I check it's connection status in the menus, It says "OK" and there are four satellites in orange. It never goes above 4. I did have all but 1 lit up at one time on a wide open road.

I did a reset by pressing the button on the front, and also "restore factory defaults" in one of the menus.

Any suggestions?

I reset it by holding the MAP button down when booting, and that seems to have resolved the issue.