Thank you - this is most helpful. I checked the back of the head unit but could not see any unplugged cables. Would be useful to have a layout of the back of the audio unit to make sure it was rewired correctly...The GPS antenna/receiver is located below what looks like a speaker grill on the top center dash and plugs into the back of the audio unit.
Funny thing is that the Garmin Navigator does recognize when the car is moving... it just places me in the wrong location (20 km away...). The clock is also way out... I wonder is something went wrong when the battery was disconnected.