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weird thump sound from subs
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<blockquote data-quote="bbeljefe" data-source="post: 8177260" data-attributes="member: 655960"><p>You said you checked grounds but did you check the head unit ground? Most people don't and the head unit ground is the reference ground for the audio signal all the way to final amplification.</p><p></p><p>When the head unit ground (normally the factory ground) goes bad, the head unit seeks ground through the antenna and some pretty freaky shite can happen. I would run a separate ground from the head unit to a good spot on the body of the vehicle before I went to changing expensive components just to test.</p><p></p><p>You can even run a temporary ground wire from the head unit to the amplifier ground and see what that does before you go to the trouble of routing wire under the dash.</p></blockquote><p></p>
[QUOTE="bbeljefe, post: 8177260, member: 655960"] You said you checked grounds but did you check the head unit ground? Most people don't and the head unit ground is the reference ground for the audio signal all the way to final amplification. When the head unit ground (normally the factory ground) goes bad, the head unit seeks ground through the antenna and some pretty freaky shite can happen. I would run a separate ground from the head unit to a good spot on the body of the vehicle before I went to changing expensive components just to test. You can even run a temporary ground wire from the head unit to the amplifier ground and see what that does before you go to the trouble of routing wire under the dash. [/QUOTE]
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