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<blockquote data-quote="matrx10503" data-source="post: 6153577" data-attributes="member: 594857">Ok, try makes things fast without leaving out details:I installed 2 amps on 1 power line 8 gauge (yes, its enough to sustain both amps)1 amp running 2 Kicker 121 amp running 2 Pioneer 6x9sboth running in mono...1 set of RCA wires.....red going to subs white going to 6x9sI used to have my power line running from my actual battery + post.....but, before I installed the 2nd amp......I am now running it out of the Positive Box my car has (im pretty sure, its the box where the alternator and the starter goes)I thought maybe 2 amps problemBut I take both amps off........and only use 1(I know my ground is atleast good enough!! it never made this noise before)But now the noise won&#039;t stop.....when I turn on A/C or accelerate it starts the whineMy dads car had this same problem...so we changed the RCAs and that fixedI know its not alternator whine/noise because it happens when my car is offI figured RCA jacks were bad....so tried 2 different sets, still get noise(prob. not safe but......my players has a Rear Outputs, and with one plugged in (white) and the red one free, if I touch the red one to metal...if you hold it firmly to the metal, the noise stopsdoes this indicate a ground bad somewhere?)My player is a Pioneer DEH-6900UBAnything I left out, please ask</blockquote>

[QUOTE="matrx10503, post: 6153577, member: 594857"] Ok, try makes things fast without leaving out details: I installed 2 amps on 1 power line 8 gauge (yes, its enough to sustain both amps) 1 amp running 2 Kicker 12 1 amp running 2 Pioneer 6x9s both running in mono...1 set of RCA wires.....red going to subs white going to 6x9s I used to have my power line running from my actual battery + post.....but, before I installed the 2nd amp......I am now running it out of the Positive Box my car has (im pretty sure, its the box where the alternator and the starter goes) I thought maybe 2 amps problem But I take both amps off........and only use 1 (I know my ground is atleast good enough!! it never made this noise before) But now the noise won't stop.....when I turn on A/C or accelerate it starts the whine My dads car had this same problem...so we changed the RCAs and that fixed I know its not alternator whine/noise because it happens when my car is off I figured RCA jacks were bad....so tried 2 different sets, still get noise (prob. not safe but......my players has a Rear Outputs, and with one plugged in (white) and the red one free, if I touch the red one to metal...if you hold it firmly to the metal, the noise stops does this indicate a ground bad somewhere?) My player is a Pioneer DEH-6900UB Anything I left out, please ask [/QUOTE]

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