Squealing noise

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Mar 7, 2013 | 05:58 PM

customsoftail200

Thread Starter

Road Master

Joined: Dec 2006

Posts: 1,200

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From: Simpsonville, SC

Squealing noise

Just getting the bike back together and noticed that my stereo is making a hi pitched pulsing squealing noise. I disconnected the amp, the biketronics hand control box and the noise is still there. I've checked all my powers, grounds even ran separate jumpers and the noise won't go away. It's gotta be in the head unit, but what the hell happened? Anyone hear of this? I got a Sony CDX M10

Mar 7, 2013 | 06:24 PM

UltraNutZ

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Joined: Nov 2007

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From: East of the Sun, West of the Moon

if you disconnected the amp and the squealing is still there, it's not the headunit because the signal to the speakers stops at the amp.

Have you completely disconnected the amp?

Mar 7, 2013 | 07:27 PM

customsoftail200

Thread Starter

Road Master

Joined: Dec 2006

Posts: 1,200

Likes: 3

From: Simpsonville, SC

By passed the amp by hooking the speakers up directly to head unit. It's baffling, I can't imagine what happened. It worked great a couple months ago, last time I rode it.

Mar 7, 2013 | 07:53 PM

UltraNutZ

Extreme HDF Member

Joined: Nov 2007

Posts: 14,670

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From: East of the Sun, West of the Moon

So with the radio only it squeals? You might want to check your speakers wire to make sure theyre not grounding out against metal. Pinched maybe?

Mar 7, 2013 | 08:41 PM

customsoftail200

Thread Starter

Road Master

Joined: Dec 2006

Posts: 1,200

Likes: 3

From: Simpsonville, SC

No, it squeals on all sources, CD, aux and tuner. I now have the head unit powered up externally from the bike and wired to one speaker externally and it still does it. It has to be the head unit.