rcas grounding out

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=95869
Printed Date: May 14, 2025 at 1:59 PM

Topic: rcas grounding out

Posted By: hamzter
Subject: rcas grounding out
Date Posted: July 24, 2007 at 8:59 AM

is it possible that my Monster Cable 201 XLN cables are touching ground and that is where I am getting my ground loop/engine noise from. It only happens when I put the Eclipse radio back in the console...

I don't know if I should wrap the cables or not... It's kind of tight behind the console.

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Mark "Hamzter" Cinense
1991 Infiniti G20 w/JDM SR20DE
Eclipse CD8445
MTX Thunder 684
Polk DB6750
Polk DB6500
Optima Red Top in the Trunk

Replies:

Posted By: aznboi3644
Date Posted: July 24, 2007 at 5:44 PM

rcas are already grounded

Posted By: jmelton86
Date Posted: July 24, 2007 at 6:43 PM

You do have the tiny little wire (pain in the a.ss to strip!) grounded at the HU side, right? Oh, and the insulation on the XLN201's is already pretty thick.

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2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001

Posted By: hamzter
Date Posted: July 24, 2007 at 7:30 PM

jmelton86 wrote:

You do have the tiny little wire (pain in the a.ss to strip!) grounded at the HU side, right? Oh, and the insulation on the XLN201's is already pretty thick.

yes,on the HU side.

I wrapped the connectors anyway. It didn't seem to helpthe noise situation. I think the HU is bad. posted_image

I will have to wait for next month to buy a new HU.

-------------
Mark "Hamzter" Cinense
1991 Infiniti G20 w/JDM SR20DE
Eclipse CD8445
MTX Thunder 684
Polk DB6750
Polk DB6500
Optima Red Top in the Trunk

Posted By: aznboi3644
Date Posted: July 25, 2007 at 1:11 AM

have you tried grounding the head unit chassis to the amp chassis??

Posted By: hamzter
Date Posted: July 25, 2007 at 7:44 AM

aznboi3644 wrote:

have you tried grounding the head unit chassis to the amp chassis??

I have not tried this. the HU is grounded to the chassis in the console as the problem seems like after I mount the HU to the chassis the noise appears.

Currently my HU has ground connected to the ground in the trunk where the amps and the battery are grounded.

-------------
Mark "Hamzter" Cinense
1991 Infiniti G20 w/JDM SR20DE
Eclipse CD8445
MTX Thunder 684
Polk DB6750
Polk DB6500
Optima Red Top in the Trunk

Posted By: aznboi3644
Date Posted: July 25, 2007 at 9:19 AM

Leave the grounds the way they are and just add another 18 gauge ground from the HU chassis the the amp chassis...if that doesn't help then try removing the HU to common ground in the trunk and leave the HU to amp ground