Originally Posted by Tom G.

Yes, Some vehicles do require the battery cables to be removed, but if the presets are still there on the radio - power was stored. Here's what I recommend:

1. Disconnect iPod from cable
2. Remove battery cables, negative first
3. Touch battery cable terminals together (away from battery) for +5 seconds, a small spark is normal as this is stored power draining from the system.
4. Allow cables to remain disconnected for about 5-7 minutes
5. Reconnect battery cables onto battery, negative last.
6. Reboot iPod by pressing on MENU and CENTER buttons for +5 seconds and then reconnecting to the DICE cable after the reboot process is completed.

Let me know if these steps correct the problem.