George2615
Super Member
OK guys, for those of you installing aftermarket radios in your cabs here is the wiring for the factory plug.
This will be correct for all 3000 series cabs and I suspect the 4000 series cabs will be the same.
Picture 1 shows the 6 pin radio harness from tractor
Pink wire separate from the harness = 12V Battery Hot
Blue w/white stripe = 12V when ign is on
Black = Ground
Light green w/brown stripe = Right Spkr +
White w/blue stripe = Left spkr -
Green = Right spkr -
Red w/blue stripe = Left spkr +
Last thing to plug in would be the antenna wire into the radio
Second pic shows wiring from my radio (may be different colors on yours)
Also attached is a word doc for the above plug pin out.
This will be correct for all 3000 series cabs and I suspect the 4000 series cabs will be the same.
Picture 1 shows the 6 pin radio harness from tractor
Pink wire separate from the harness = 12V Battery Hot
Blue w/white stripe = 12V when ign is on
Black = Ground
Light green w/brown stripe = Right Spkr +
White w/blue stripe = Left spkr -
Green = Right spkr -
Red w/blue stripe = Left spkr +
Last thing to plug in would be the antenna wire into the radio
Second pic shows wiring from my radio (may be different colors on yours)
Also attached is a word doc for the above plug pin out.