The year old battery on my '05 MDX went dead after sitting for a week. I jumped it, let it run awhile, reset the radio code, but the nav display is black. Any ideas why the battery died or the display won't come on?

 

IVE had this happen to a RDX before.. had to force the nav to come on by using the check connector in the harness..

 

Could you elaborate?

 

Apparently I had a defective battery. Replacing it, all works as new.