rci mike pinouts
have a look here.
if I remember right RK-56 is
blue=TX
white = audio
black = RX
braid = audio sheild
red = common
73
Jeff
CDX 339 Radioactive
</p>
have a look here.
if I remember right RK-56 is
blue=TX
white = audio
black = RX
braid = audio sheild
red = common
73
Jeff
CDX 339 Radioactive