SHARP
model(s) wire color pin number
CB-700 Audio 1
CB-800 Ground 4
CB-2260 N/C N/C
CB-2460 Common 3
CB-750A PTT 2
CB-800A receive N/C
CB-4370    
CB-2170    
CB-5470    
model(s) wire color connection
CBT-58 Audio audio
CB-500 UB Ground ground
CB-550 UB N/C N/C
  Common ground
  PTT relay
  receive N/C