Does anyone know where to get the main cpu modules for these radios. Myself and a number of other operators have been looking but no luck. The setup is the same for most of these (2950, 2970, 2517, etc) and the modules can be interchanged with little or no changes. One would think with this module being the very downfall of this series, someone would have surplus modules for aftermarket sales. Any help would be greatly appreciated.