I had the Motorola 5820 radios. 5 mile, 2 watt (I believe).
These worked OK and Sampson Racing had cords to fit them, but the impedance was all screwy, I think. The noise cancelling microphones were very quiet, so one had to turn up the volume, but any type of un-squelched noise that came through was at least 100 times louder than that from the microphones and it felt like my head was going to explode. Going with the professional models significantly helped (Motorola GP300).
On edit: I still have the 5820's. They're very good radios but won't have the headsets with them. If you get the car radios tuned to the same frequencies (except those dedicated to the 0.5W FRS frequencies), your "fans" can join in on the craziness. They just won't be able to hear as well as your crew chief.
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Bill
Planet 6 Racing
bill (at) planet6racing (dot) com
[This message has been edited by planet6racing (edited February 03, 2004).]