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<blockquote data-quote="SSpiro" data-source="post: 7626242" data-attributes="member: 573096">I believe this is a fairly common problem, but I need to find a solution if there is one.For now, i&#039;m using an eclipse AVN5500. It has a composite video input, which I use to listen to my ipod, my phone, or play videos from my ipod on the deck with. Anytime any of these devices are plugged in and charging through the cigarette lighter, I get the dreaded ground loop interference and its obnoxious. If i turn the audio way up, it drowns it out for the most part - however, its still there and affecting the sound quality.I&#039;m working on a system design right now to replace the AVN5500 with a tablet in the dash.. however, it&#039;ll be setup the same way and will always be plugged in. Audio will run through an EQ setup. I want to make sure i get this cleared up before I proceed in the tablet project.No other components on the system yet. Still factory speakers, subs/amps not plugged in yet or setup.&nbsp; RCA&#039;s are ran, but just coiled up in the trunk. So the only ground point I can think of that is or could have a problem is the aftermarket HU or a bad ground with the lighter outlet? I have no idea.Unless it could be the coiled up RCA&#039;s.Let me know your thoughts.</blockquote>

[QUOTE="SSpiro, post: 7626242, member: 573096"] I believe this is a fairly common problem, but I need to find a solution if there is one. For now, i'm using an eclipse AVN5500. It has a composite video input, which I use to listen to my ipod, my phone, or play videos from my ipod on the deck with. Anytime any of these devices are plugged in and charging through the cigarette lighter, I get the dreaded ground loop interference and its obnoxious. If i turn the audio way up, it drowns it out for the most part - however, its still there and affecting the sound quality. I'm working on a system design right now to replace the AVN5500 with a tablet in the dash.. however, it'll be setup the same way and will always be plugged in. Audio will run through an EQ setup. I want to make sure i get this cleared up before I proceed in the tablet project. No other components on the system yet. Still factory speakers, subs/amps not plugged in yet or setup. RCA's are ran, but just coiled up in the trunk. So the only ground point I can think of that is or could have a problem is the aftermarket HU or a bad ground with the lighter outlet? I have no idea. Unless it could be the coiled up RCA's. Let me know your thoughts. [/QUOTE]

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