Where can I get the part number AAH50RDC9AA1AN? This radio is the Motorola CP200 16 Channel UHF unit. It is one of the best on the market. At Two Way Direct we have a wide variety of radios both commercial and consumer style to keep you in communication with your people. Contact us today and see the variety, the great prices and wonderful customer service. We are here to help you with your communication needs.