Road Glide banner

1 - 6 of 6 Posts

·
Registered
Joined
·
587 Posts
Are you running OEM spark plugs? Some after market plugs are missing the resistor and will cause feedback through the radio.
 

·
Registered
Joined
·
202 Posts
I'm no audio guru, but I understand that the ground needs to be as short as possible (or it will induce the hum.)

Have you added any equipment or changed the length of your grounds?

Beavz
 

·
Registered
Joined
·
82 Posts
I have what I believe is a ground hum through the radio that goes up and down with speed. How do I cure that?? I cannot find the wire on the diagram.


Sent from my iPhone using Motorcycle.com Free App

Pin 9 of the 23 pin connector (J1850 data from the ECM) controls auto volume. It's a data line, not audio, so would not have anything to do with your issue.
The increase / decrease with the speed of the bike would probably be ignition noise getting into the ground. Check all your radio and battery grounds.
 
1 - 6 of 6 Posts
Top