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<blockquote data-quote="dmc" data-source="post: 2802194" data-attributes="member: 575143">solved!Here&#039;s what I did:I got an adapter to plug headphones into the RCA outs of the head unit. All three sets of output (front, rear, sub) worked!!!! I plugged the sub back in, no luck.Then, I plugged headphones into the sub RCA jacks on the amp side of the cable. That worked too!! At this point, I suspected some bizarro grounding problem. I set up the following:RCA cable from HU -&amp;gt; RCA to headphone adapter -&amp;gt; headphone female to female adapter -&amp;gt; headphone to RCA adapter -&amp;gt; amp inputVoila, my amp worked!Now get this: I unplugged the set of adapters, and went right from the RCA to the amp (the setup that never worked in the past). It worked this time!Right now, my amp is grounded to the trunk latch. I&#039;ll be moving the ground to a better place soon, and I&#039;ll let you know how it works out. Thanks for all the help! //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" /> //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif</blockquote>

[QUOTE="dmc, post: 2802194, member: 575143"] solved! Here's what I did: I got an adapter to plug headphones into the RCA outs of the head unit. All three sets of output (front, rear, sub) worked!!!! I plugged the sub back in, no luck. Then, I plugged headphones into the sub RCA jacks on the amp side of the cable. That worked too!! At this point, I suspected some bizarro grounding problem. I set up the following: RCA cable from HU -> RCA to headphone adapter -> headphone female to female adapter -> headphone to RCA adapter -> amp input Voila, my amp worked! Now get this: I unplugged the set of adapters, and went right from the RCA to the amp (the setup that never worked in the past). It worked this time! Right now, my amp is grounded to the trunk latch. I'll be moving the ground to a better place soon, and I'll let you know how it works out. Thanks for all the help! [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] :) [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] [/QUOTE]

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