KENWOOD
model(s) wire color pin number
TS-820 Audio 1
  Ground 4
hi-z (use an amplified mic only) N/C N/C
  Common 2
  PTT 3
  receive N/C
model(s) wire color pin number
tr-2200 Audio 1
  Ground 3
  N/C n/c
  Common 3
  PTT 2
  receive n/c
model(s) wire color pin number
ts-520 Audio 1
ts-599a Ground 4
  N/C n/c
  Common 3
  PTT 2
  receive n/c
model(s) wire color pin number
most 4 pin radios Audio 1
  Ground 4
  N/C n/c
  Common 3
  PTT 2
  receive n/c
model(s) wire color pin number
most 5 pin radios Audio 1
  Ground 4
  N/C n/c
  Common 5
  PTT 2
  receive n/c
model(s) wire color pin number
most 6 pin radios Audio 1
  Ground 6
  N/C n/c
  Common 6
  PTT 2
  receive n/c
model(s) wire color pin number
most 8 pin radios Audio 1
  Ground 7
  N/C n/c
  Common 8
  PTT 2
  receive n/c