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[Camojeeper]

On my 07 ultra classic I have the hawg wired amp and faring speakers with the factory H/K head unit. So this week while riding along I just lost all sound. Hit the next exit checked the CB/off , intercom / off no sound from ; cd,am,fm,wb etc. power unit down restart and bammo I got sound again.  Then it started doing it more often. Read on here that I should turn off my AVC and Bass n Treble gains to below half.  Tried that no change! So here's the weird thing the speaker switch in the faring cap you know the one headphones/speakers/speakers-intercom. When the sound goes out sometimes I can reach down and toggle between the middle pos and the bottom ( light on pos) and the sound will come right back on? WTH? Then if it goes out toggle it again and it comes back but not always?
Anyone have any ideas?

[smkymtnboy]

  you can try cleaning the fuse!! best bet is iron cross audio!! vendor on this site. the radio on the 07 bumps the handlebar bolt.

[Camojeeper]

I have power to the unit just no sound? I read somewhere someone else had a speaker switch similar problem.

[smkymtnboy]

I have power to the unit just no sound? I read somewhere someone else had a speaker switch similar problem.

my 08 done the same thing!! sometimes cleaning the fuse will do it. had to send mine to iron cross audio.mine acted like speaker switch also!

[Camojeeper]

Fuse in the side panel?

[HD Jim]

Mine was doing that and the head unit got replaced under warranty.

[Camojeeper]

ESP expired 2 years ago? :-(

[smkymtnboy]

Fuse in the side panel?

yes. give it a try!

[phato1]

Fuse in the side panel?

Yes. try cleaning the contacts of both the fuse and the socket.

But..sorry to say you may need the services of IRON CROSS - the HK radios are known to have a weak spot on the circuit board inside the head unit that may crack over time resulting in the symptoms your describing. Good news is they can repair and modify the head unit so it won't happen again.

[Camojeeper]

Well I'm cheap. So I will try it for sure

[Camojeeper]

I wonder if iron cross can update my 8 year old head unit too the more modern infotainment deal

[Fired00d]

I wonder if iron cross can update my 8 year old head unit too the more modern infotainment deal

Why would you want to change it from something you've got 8 years of good service out of w/no problems to something that has been nothing but problems for the 2 years they have been out?

 
Ride Safe,
Fired00d
 

[Para Bellum]

the HK radios are known to have a weak spot on the circuit board inside the head unit that may crack over time resulting in the symptoms your describing.

So true.

Camo,

My '08 had same symptoms as yours, including (at first) working when switching the speaker switch.  Eventually, though, sound went out completely and had to repair head unit.