2003 FLTR Audio Control
Trying to figure out where I should start looking first. I did go ahead and buy the 71642-08 audio switch as someone had it brand new for $27 shipped. But since the light does not come on the speaker switch, I'm not sure if it starts there or not.
Does the radio come on and switch inputs?
Does it have audio level bars/ indicators? Do they incresse/decrease with volume control?
Before I bought anything I'd do some troubleshooting. Pull the outer faring and use a test speaker at the back of the radio to find out if the radio is even outputting to the speakers. Then keep moving towards the speakers testing at each connection until you lose audio.
I'd think the most likely suspects would be either the radio, the switch you asked about or some wiring defect somewhere and both speakers being bad bringing up the rear.
Good luck.
On my 2013 here is how they work. On your 2003, I don't know if they're the same. Check your owner's manual if they're different.
The 5/Left, Up, Down, and Right Arrow soft keys are used for radio band frequency tuning, Bass and Treble mixing, Fader and Volume. They are also used to scroll and highlight a selection in a list. For an Advanced Audio System accessory module, the arrow keys are active when arrows appear in the display.
https://serviceinfo.harley-davidson....cle/lookupForm
On my 2013 here is how they work. On your 2003, I don't know if they're the same. Check your owner's manual if they're different.
The 5/Left, Up, Down, and Right Arrow soft keys are used for radio band frequency tuning, Bass and Treble mixing, Fader and Volume. They are also used to scroll and highlight a selection in a list. For an Advanced Audio System accessory module, the arrow keys are active when arrows appear in the display.
06 and older were made by a company called, I think, Radio Sound.
06-13 were made by Harmon Kardon.



