We have changed dip switches in the mic to get hot mic with no paddle pressing, and making both paddles ptt. Then there are some chip resistors in the audio path that need there value changed, but I don't have the info handy, I will dig it up later if I make it back to my shop.
Motorola RMN5050A Desktop Microphone
Convenient microphone option for when you are operating the mobile on a desktop. Transmissions are easier for control station users as the microphone does not need to be picked up. Large push-to-talk buttons are easy to access.
As some additional information on this microphone, you will notice that there is a multi position switch located inside the mic to allow the mic to be configured for different radios.
(Monitor before transmit, separate grounds for PTT and mic low, etc.)
