[Tonys96]

imported post

I have to agree with exavid, regular doses of "WD-40" or something similar and working the switch, seems to keep them in the best shape.

 

[Tonys96]

imported post

Steve, before you cut any wires:

What year is your bike ???

I show a different main radio connector pin for early 1500's.

Do you have an 18 pin and a 6 pim connector ???

If so and your bike is an 88-92, on the 18 pin connector, pin 6 is your mute on. The pin numbering is kind of funky, I can scan and send you a diagram if needed.

Pin 19 is auto muting when reverse is being used. It's on the 6 pin connector.

 

[Tonys96]

imported post

I'm afraid I don't have that info.

There is a wire harness test matrix in the manual, same offer.

 

[Tonys96]

imported post

Steve, if I'm reading the wiring diagram correctly, it appears that when the switch is out a connection is made between pin 15 (green/black), [headset out put E]and pin 6 (blue/black), [Muting switch]

When the switch is depressed the connection is broken or open, not grounded, just open.

To accomplish this same task, you could pull the wire from pin 6, the blue/black wire. Don't ground it, just leave the circut open.