Hello Everyone,

I have a 1994 FLHTCU Ultra-Classic-Electra-Glide...

I've only had it for a couple of weeks, and this is my first Harley, so I'm not familiar with the bike or the stereo system...

When I turn the ignition switch to the "ON" position, the rear speakers in the Tour Pac make a loud "POP" and then they "HISS" continuously...
The front speakers are not affected...
This occurs even with the stereo and CB radio "OFF"...
The "Speakers ON/OFF" switch on the fairing has no affect either...
When the stereo is on the speakers work but you can hear the "HISS" in the background...

Anybody have any ideas what might be causing this?

Thanks,
Joe

 

yep.. sounds like you have an amplifier installed somewhere that is powering the rear speakers. The hissing noise is due to a high-level input (usually speaker wires from the radio instead of preamp) going into the amplifier. Once you find the amp, you should be able to see one or two adjustable ***** on it to adjust sensitivity. simply turn em down a little.

The pop you're hearing is the internal turn on delay circuit of the amp either has failed or it doesn't have one at all. I would look at replacing the amp with a newer model that has the turn-on delay circuit. There is another method to resolving this with a standard 4 prong relay you can pickup at any auto parts store but if something happens with the relay, then you risk burning up the amp itself.