For the past month, the S60 has been possessed by some electrical gremlins...

First the turn signal indicators stopped working inside of the car - no clicks, no lights on the dash - even though the bulbs were blinking normally on the exterior.

A week passes, and I hear a beep inside of the car while driving, and a second later, the lights in the dash would blink off and on again, the speed/tach dials would spike momentarily, and the fasten belt indicator in the rear view cluster would go on and off.

Some days it won't happen at all, other times it will go through this cycle every 30 seconds.

The only codes that have shown temporarily in the message center were: 103, 064, and 056. They came on once and never again.

I considered replacing the DIM to fix the turn signal problem (and hopefully the other issues), but wonder if there's a larger electrical issue at work here.

Any clues, community?

Thanks.