I have a 2001 RR 4.6. HSE. So I hope this is in the right place?

First my door locks started, locking and unlocking by themselves, whenever they feel like doing this. They still do.

Then, my battery was putting out low voltage, 10Volts, so I replaced it. Before that, the GPS screen went blank, and the radio audio quit.

Now, I hear the CD tray, the one on the passenger side, in the back cargo area, opening and closing!

Does the computer software need to be loaded again? Dealer says this is a two hour thing to do.

They won't offer help over the phone, they want the RR in service. 127.00 will get me info but no cure.

Anyone ever experience troubles like this?

Help and advice would be appreciated.