Subject	Makes sense what you say about the speaker wires, I think >
Posted by	WE350Z on June 10, 2013 at 7:18 PM
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In Reply To	Also, unplugging each speaker will do nothing posted by fuzzymonkey on June 10, 2013 at 05:26 PM
Message	you are right about the input and yes all the speakers have the whine. I think the amp isn't the problem - I used as short a run as possible with pretty decent gauge wire to the ground point directly below the parcel tray. I can try to pull it up even further to shave a little wire length off. I did also scrape away the paint from the ground point there. I think the ground for the head unit could be suspect - not sure I scraped paint there and it is being shared as a ground for something else. It is grounded to a screw right behind it. Is there a preferred ground point for it? I can't imagine what could be interfering with the RCA's along the center console. There isn't that much going on in there. They are also really high quality monster cables. Could I isolate by grounding the amp or the HU to some other ground point, say off the car entirely? I know I should be able to improve the situation a little by turning the amp gains down, and just compensating by turning the input gain up (i.e. HU volume). _____________________ 2006 Yamaha R1 Anniversary Edition 2006 Scion tC (Sold) 2004 Yamaha YZF-R6 (Sold) 2003 Nissan 350Z Track (Sold) 2000 BMW X5 4.4i 1993 300ZX Twin Turbo 1985 Nissan 300ZX NA (Sold) http://WE350Z.com>v WE350Z at gmail dot com
Follow Ups	Bad Alternator Whine in Sound System - WE350Z 16:03:28 06/10/13 How long is your ground cable from your amp? - fuzzymonkey 17:22:30 06/10/13 The ground cable from the amp isn't very long - probably >> - WE350Z 19:09:58 06/10/13 Also, unplugging each speaker will do nothing - fuzzymonkey 17:26:21 06/10/13 Makes sense what you say about the speaker wires, I think > - WE350Z 19:18:14 06/10/13 a helpful link - shaggee 14:23:26 06/11/13 thx - so what is the consensus best ground point for the HU? (n/m) - WE350Z 15:37:25 06/11/13 I've never had issues with any of my Z's - 300ZMang 08:00:08 06/12/13 which "stock" ground? Exactly where is it for the HU? (n/m) - WE350Z 13:02:00 06/12/13 All of mine have been behind the double din - 300ZMang 15:32:54 06/12/13 on left hand side or ride? I think i am using the left bolt (n/m) - WE350Z 16:58:20 06/12/13 What about a ground loop isolater like this?? (n/m) - WE350Z 18:31:04 06/11/13 Re: Bad Alternator Whine in Sound System - zcarlvr 06:21:06 06/13/13 so ground it to the negative terminal? what guage? Doesn't - WE350Z 16:27:51 06/14/13
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