I recently had a issue where it wouldn't start but all electronics worked fine. I thought battery since it was only clicking. I tried charging no change. I then removed the battery and got tested, it tested good. There was some corrosion on the posts so i bought post cleaner and the protector to prevent it getting bad again. I scrubbed the posts and the connectors with a small wire brush. I also scrubbed the ground wire that screws into the body above battery. After moving the small fuse box behind the battery so i could fit it I was able to then get the battery back in. The car now starts and works fine but i noticed the display doesn't show date and the GPS radio shows no time. I tried to set time but it doesn't show a GPS signal anymore so i cant set now. I went into navigation and GPS has a line through it. Anyone have any ideas or tips on how i could fix this?
Also on a side note anyone know what the little ring is that goes around the positive connector on the battery?
