The Radio Information Board

Can anyone give me a place to get new parts for GE radios. Mics, mic cords, brackets, power cords etc. especially for older radios.

Is there any uniden two-way radio forums? Uniden still sells prog software but does not have any 501 interfaces. I need to locate one or build one.

Have a inhereted a telemetry system with SM2150s. Can these be programmed narrow band? Need a layout of the pots and functions, especially dev. On a narrow band freq. and one radio had 6kc dev. Need specs and info. Thanks