Need Help Eliminating Buzz When Using Stereo Aux In

[ryevick]

I drive a big truck OTR and I use my Droid X phone as my MP3 player (it holds a lot and sits in a window cradle)... If I try plugging it into the Aux Input in the truck's stereo while it is being charged by my Cobra 1575 power invertor it makes a loud static buzz... if I try doing it when it is being charged using the cigarette lighter adapter it makes a loud whining buzz that increases in pitch and volume the faster I drive... if I plug it in without charging it, it plays fine but I drive all day and it needs to be charging when in use. Is there something I can put between the Cobra invertor's ground cable and the battery ground post to eliminate this or what? I am not too knowledgeable on this stuff but I would guess it's some kind of ground problem when a loop is created or something. Please help! Ideas, suggestions? Thank you! //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

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[butterMilk 10+ year member]

You use a AUX cable? Try a ground loop isolator, plug it into the AUX connection on ur truck, then plug ur AUX cable from ur mp3 player into the isolator.

 

[ryevick]

You use a AUX cable? Try a ground loop isolator, plug it into the AUX connection on ur truck, then plug ur AUX cable from ur mp3 player into the isolator.

Thanks, I'm going to try this from Kensington, hopefully it will stop it.