I had the same problem with my 2004 after I had completed a Bluetooth installation...basically I had drained the battery to the point that it did not have the umph to open my top....albeit everything else worked fine.
So, a short drive down the road ( a mile or so) I pulled over and tried again...worked like a charm. The battery just needed some rejuvination from the alternator.
Give it a shot....hope it works!
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