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<blockquote data-quote="cleanblaze01" data-source="post: 2323700" data-attributes="member: 568298">i have an alpine 9855.&nbsp; a while back everything in my truck, audio wise, started going crazy..everything would be playing and then all of a sudden stop playing and my subs would make a whining noise, very high pitch-subs, speakers, amps...i thought it might be my headunit since it controls all of the above, but today i just hooked up a speaker to regular radio power and it worked fine.&nbsp; could it be that maybe the rca outputs are bad?? or maybe the possibility of me having a bad amp and it back feeding to the radio and affecting everything.&nbsp; i am completely stumped and have no idea what to do..all equipment-alpine 9855cadence t10 tweeterscadence 2&quot; midrange/tweeterscadence tx 6.5 coaxialsppi 4 channel-300.4cadence tx 12&#039;s(4)cadence dca2500</blockquote>

[QUOTE="cleanblaze01, post: 2323700, member: 568298"] i have an alpine 9855. a while back everything in my truck, audio wise, started going crazy..everything would be playing and then all of a sudden stop playing and my subs would make a whining noise, very high pitch-subs, speakers, amps...i thought it might be my headunit since it controls all of the above, but today i just hooked up a speaker to regular radio power and it worked fine. could it be that maybe the rca outputs are bad?? or maybe the possibility of me having a bad amp and it back feeding to the radio and affecting everything. i am completely stumped and have no idea what to do.. all equipment- alpine 9855 cadence t10 tweeters cadence 2" midrange/tweeters cadence tx 6.5 coaxials ppi 4 channel-300.4 cadence tx 12's(4) cadence dca2500 [/QUOTE]

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