Andy A Posted May 12, 2018 Report Share Posted May 12, 2018 Anybody have any advice on tracking down a squeel/static noise in my intercom while listening to XM radio? Our 2014 CTLSi has the toggle switch to the right of the intercom to toggle between XM and Aux music. When I have it on XM I pick up a squeel/static noise. When I switch it to Aux it goes away. Where should I start? Link to comment Share on other sites More sharing options...
Madhatter Posted May 13, 2018 Report Share Posted May 13, 2018 What intercom Link to comment Share on other sites More sharing options...
Tom Baker Posted May 13, 2018 Report Share Posted May 13, 2018 Since you have XM I assume you have a Garmin GPS. I would try shutting off the GPS circuit breaker and see if the noise goes away. I have seen a ground loop issue cause squealing. Link to comment Share on other sites More sharing options...
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