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<blockquote data-quote="btaylor" data-source="post: 6299057" data-attributes="member: 614467">I have a 99 Honda Accord with a killer whine that corresponds with the RPMs of the engine. Stock Stereo with the MTX re-Q5 sound processor going to a JL Audio Slash v2 Series 300/4v2 amp powering Alpine componets in the car. I also have a an Old Alpine 300 watt amp pushing a 12&quot; P2 Rockford Fosgate. Both amps are routed through a cap. The power wires run through the car on one side and the RCAs on the other. Everything is securely grounded in one spot. I had several different grounds at first and the whine through the speakers. Now with one ground spot i still have the whine. I adjusted all of the levels on the JL amp as low as possible but i still have some noticeable whine. Adjusting the amp levels is where the noise really comes from. I guess basically I am turning down the power to the whole system. Thats great but then you can&#039;t really crank up the volumeHow can I make it stop? I have been reading some threads that say ground the RCA cables, how do you do that? Any other ideas? I have acutally put in a switch by the MTX processor so that I can kill whine when the system is off. Do they make an inline RCA noise filter?Thanks</blockquote>

[QUOTE="btaylor, post: 6299057, member: 614467"] I have a 99 Honda Accord with a killer whine that corresponds with the RPMs of the engine. Stock Stereo with the MTX re-Q5 sound processor going to a JL Audio Slash v2 Series 300/4v2 amp powering Alpine componets in the car. I also have a an Old Alpine 300 watt amp pushing a 12" P2 Rockford Fosgate. Both amps are routed through a cap. The power wires run through the car on one side and the RCAs on the other. Everything is securely grounded in one spot. I had several different grounds at first and the whine through the speakers. Now with one ground spot i still have the whine. I adjusted all of the levels on the JL amp as low as possible but i still have some noticeable whine. Adjusting the amp levels is where the noise really comes from. I guess basically I am turning down the power to the whole system. Thats great but then you can't really crank up the volumeHow can I make it stop? I have been reading some threads that say ground the RCA cables, how do you do that? Any other ideas? I have acutally put in a switch by the MTX processor so that I can kill whine when the system is off. Do they make an inline RCA noise filter? Thanks [/QUOTE]

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