I rented a car at SFO, mounted the GPS, and drove off to Carmel. No voice directions. Meant no auto power to GPS. I turned it off, knowing when the battery ran out, there was no way to recharge it. I suspect it is the cable, but it could be the cradle.
At Gilroy, garlic capital of the world, I'm told, we checked the cable's fuse, courtesy of Auto Source, which was ok.
Also verified power to the car's outlet courtesy of Radio Shack nearby.
On to Carmel. Our room was an hour away from being ready, so drove to an REI and a Best Buy, neither of which had a Garmin cable that old, or any but newest units. Sigh.
So, all around Carmel and Monterey, had to use maps only, which was a pain.