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<blockquote data-quote="DoobieBrother" data-source="post: 2686811" data-attributes="member: 568811">Ok.&nbsp; I&#039;m running an 880PRS.&nbsp; I&#039;ve been running it with no amp and stock speakers for a while with no issue.&nbsp; Hooked up the amp, new speakers, and sub.&nbsp; Sounds good.&nbsp; Need to tune a bit, but sounds good none the less.&nbsp; Now, I made sure a had a solid ground (with DMM) on amp, and put an extra ground from the head unit chassis to a bolt that went into the truck frame.&nbsp; And again checked with DMM.&nbsp; .1 ohm reading.&nbsp; Looked good.&nbsp; Everything looked good.&nbsp; No pops or weird noises.&nbsp; But if I have the volume at zero, I can hear a bit of alternator whine.&nbsp; As soon as you turn it up to hear any music it goes away.&nbsp; I tried wrapping the RCA&#039;s with a wire and attaching them to unit chassis.&nbsp; May have made a slight difference, but not so much.So, here&#039;s my question.&nbsp; As minimal as it is, I can put up with it as opposed to sending it in to get fixed.&nbsp; But, if I leave it like this, will it eventually get worse?&nbsp; Or can I just leave it like this indefinitely?</blockquote>

[QUOTE="DoobieBrother, post: 2686811, member: 568811"] Ok. I'm running an 880PRS. I've been running it with no amp and stock speakers for a while with no issue. Hooked up the amp, new speakers, and sub. Sounds good. Need to tune a bit, but sounds good none the less. Now, I made sure a had a solid ground (with DMM) on amp, and put an extra ground from the head unit chassis to a bolt that went into the truck frame. And again checked with DMM. .1 ohm reading. Looked good. Everything looked good. No pops or weird noises. But if I have the volume at zero, I can hear a bit of alternator whine. As soon as you turn it up to hear any music it goes away. I tried wrapping the RCA's with a wire and attaching them to unit chassis. May have made a slight difference, but not so much. So, here's my question. As minimal as it is, I can put up with it as opposed to sending it in to get fixed. But, if I leave it like this, will it eventually get worse? Or can I just leave it like this indefinitely? [/QUOTE]

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