I was driving my accord (8G EX-L) in normal conditions, and stopped by the mall for about 30 mins. While I am driving back home, I noticed the clock on the dash was blinking. I adjusted the time and tried to turn on the music and it asked for me to "Enter the code." then I entered the code and everything has gone back to normal or so I thought. It started doing this when I had an ingenix Nav system installed (bought at the dealer), the dealer thought the nav system was faulty and replaced it 4 times (they have a 3rd party do it). After 4 faulty systems I finally had them refund me and put my stock radio back, turns out the same things happens to my clock/radio now. Anyone know what might be happening?

 

Loose or corroded battery cable connections.

 

Checked out this morning, looks clean cables are tight.

 

Does the clock ever go out, then come back?

 

Everything looks normal, so i could be driving and normal operation but randomly overnight or even after a trip somewhere I park the car and then when it's time to go again it's as if the clock has reset and it wants the radio code again. I wonder if it has to do with some kind of security system or anti theft system on the radio.