Sony CDX MP70

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=23037
Printed Date: May 15, 2025 at 2:56 PM

Topic: Sony CDX MP70

Posted By: AudioBAHNvlcm
Subject: Sony CDX MP70
Date Posted: December 18, 2003 at 2:27 PM

i was wondering, what color is the ground wire coming out of the back of this Head unit. and should i tie in the ground for my power invertor to it, i heard somewhere that if you use the same ground, it will get rid of all engine whine.

Replies:

Posted By: Sweekster
Date Posted: December 18, 2003 at 3:05 PM

It's the black wire. The engine whine can be cause by a couple things. But mainly it's caused by either a bad ground connection or too many ground connections (also known as a ground loop). it's best (if possible) to use the same ground for all your stuff. You could try the using the ground on your power inverter-that might help. But if all else fails...just run a wire from the negative on your battery.

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Duane...

If you think you're confused, imagine how you feel. posted_image

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