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<blockquote data-quote="fbi90909" data-source="post: 3740222" data-attributes="member: 568679">i am pretty sure this has been covered somewhere but I&#039;ve been searching a bit and can not find much of any info on this.well, what i am trying to get at is i know with most amps you are asked to use a ground of 2ft or shorter.well currently i run a profile ap1040 for my stock speakers and they have always had a grounding noise, at first i thought oh maybe it&#039;s the head unit, it being a pioneer and all. did the grounding rca&#039;s and it still continued. initially i had the amp grounded to a seat belt bolt. yes it was properly sanded and such. later on in time i moved the ground and cut it shorter. currently it&#039;s only 1 foot and tapped onto the trunk floor into an area that seems to be the frame(unibody). it cut down the noise but i had kept assuming it was the head unit.well! recently i was dicking around with the amps and i had disconnected all the RCA&#039;s from the amp and i was able to hear the noise coming out of my speakers. thus eliminating the thought of the noise coming from my rca&#039;s, and this was with the engine off and volume down, and no i do not get alt whine.so well what i am getting at is-if i grounded the amp directly to the battery am i able to go past the recommended shorter than 2 ft?i have not unmounted my amp from it&#039;s place to test the ground direct which i will do in a moment but will it be okay to go above 2ft if it does clear up the noise?</blockquote>

[QUOTE="fbi90909, post: 3740222, member: 568679"] i am pretty sure this has been covered somewhere but I've been searching a bit and can not find much of any info on this. well, what i am trying to get at is i know with most amps you are asked to use a ground of 2ft or shorter. well currently i run a profile ap1040 for my stock speakers and they have always had a grounding noise, at first i thought oh maybe it's the head unit, it being a pioneer and all. did the grounding rca's and it still continued. initially i had the amp grounded to a seat belt bolt. yes it was properly sanded and such. later on in time i moved the ground and cut it shorter. currently it's only 1 foot and tapped onto the trunk floor into an area that seems to be the frame(unibody). it cut down the noise but i had kept assuming it was the head unit. well! recently i was dicking around with the amps and i had disconnected all the RCA's from the amp and i was able to hear the noise coming out of my speakers. thus eliminating the thought of the noise coming from my rca's, and this was with the engine off and volume down, and no i do not get alt whine. so well what i am getting at is- [B]if i grounded the amp directly to the battery am i able to go past the recommended shorter than 2 ft?[/B] i have not unmounted my amp from it's place to test the ground direct which i will do in a moment but will it be okay to go above 2ft if it does clear up the noise? [/QUOTE]

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