I just got my new Pro-651 and I'm having a few issues. The power supply I was give by the Rat Shack clerk was not the same one listed on the web site as being the proper one, but the clerk assured me it was of the same requirements. I did get the correct tip and set it for center positive as required. When I plug it in to the radio there's no indication the radio is plugged in, Shouldn't there be some sort of indication on the display that it's plugged in or charging? Thansk for your replies.