I don't want to sound like an idiot, but can someone tip me off on where I can locate the serial # on a Ric 4003. I just picked up a used one and would love to go to the Ric website and research it. I looked on the website and couldn't locate the number in any of the suggested locations. If one of you Ric veterans could steer me in the right direction I'd be grateful. By the way she plays sweet.