Ground hum noise from speakers

Limeybastard · 01-05-2015, 03:26 PM

Not sure if it is just my imagination but I can hear engine hum through the cars stock base audio system. Almost similar to a stuck viscous fan coupling when you rev it makes the same sound.

I connect my Samsung phone via headphone cable to the aux in of the stock radio. Could this be the issue?

RonRizz · 01-05-2015, 03:45 PM

try to isolate the noise. Is it present when using AM or FM, Disc, or just with phone and cable? If so, it may be your jack, or more than likely, just try a new cable.

Limeybastard · 01-05-2015, 03:49 PM

Quote:

Originally Posted by RonRizz

try to isolate the noise. Is it present when using AM or FM, Disc, or just with phone and cable? If so, it may be your jack, or more than likely, just try a new cable.

Thanks, I will have to do more isolation tests, so far just turning off the stock HU worked. Will post back after.

TreeSemdyZee · 01-07-2015, 01:34 PM

I'm guessing it's the phone connection.

SouthArk370Z · 01-07-2015, 01:59 PM

If you get the noise in all modes then check the power and speaker wiring. Radio mode only: check the antenna wiring. CD only: shouldn't happen as wiring is internal. Other modes: check source wiring.

Limeybastard · 01-08-2015, 08:49 AM

Quote:

Originally Posted by SouthArk370Z

If you get the noise in all modes then check the power and speaker wiring. Radio mode only: check the antenna wiring. CD only: shouldn't happen as wiring is internal. Other modes: check source wiring.

Must have been one off, done further tests I cant hear the engine rpm noise anymore than usual through the speakers.

By the way our cooling fans are all electric on our cars right? LOL.

bigaudiofanat · 01-08-2015, 09:13 AM

I know when I use my Aux cord and connect my phone to the car charger. I do get noice through the system.

SouthArk370Z · 01-08-2015, 09:15 AM

Quote:

Originally Posted by Limeybastard

... By the way our cooling fans are all electric on our cars right? LOL.

If you mean the radiator fans then, yes, they are Gold Medallion.

Limeybastard · 01-08-2015, 09:18 AM

Quote:

Originally Posted by SouthArk370Z

If you mean the radiator fans then, yes, they are Gold Medallion.

Yeah since it sounded just like a viscous fan coupling stuck. I'm sure you know with that when u rev the car the fans also spins quicker. Making that roar noise. Haha.

Sent from my SM-N910T using Tapatalk

01-05-2015, 03:26 PM	#1 (permalink)
Limeybastard A True Z Fanatic Join Date: Apr 2014 Location: FL and London UK. Posts: 1,514 Drives: 2014 370Z Sport. Rep Power: 17	Ground hum noise from speakers Not sure if it is just my imagination but I can hear engine hum through the cars stock base audio system. Almost similar to a stuck viscous fan coupling when you rev it makes the same sound. I connect my Samsung phone via headphone cable to the aux in of the stock radio. Could this be the issue?

01-05-2015, 03:45 PM	#2 (permalink)
RonRizz A True Z Fanatic Join Date: Aug 2011 Location: Pine grove, Pa Posts: 2,136 Drives: 2 feet, 3 pedals Rep Power: 6775	try to isolate the noise. Is it present when using AM or FM, Disc, or just with phone and cable? If so, it may be your jack, or more than likely, just try a new cable. __________________ P99rs Head Unit--- Amps- 2 Pioneer Prs800d --- Zapco ST1000MX---Zapco ST-4XSQ---- SI BM mk5 Subs---SI TM65v2 Midbass--- SI M3 mids--- SI M25 xbl2 tweeters ----- 2016 MECA street class 3rd place at world finals

01-07-2015, 01:59 PM	#5 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	If you get the noise in all modes then check the power and speaker wiring. Radio mode only: check the antenna wiring. CD only: shouldn't happen as wiring is internal. Other modes: check source wiring. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

01-08-2015, 09:13 AM	#7 (permalink)
bigaudiofanat Car Audio Installer Join Date: Jun 2009 Location: Magnolia DE Posts: 8,342 Drives: 2012 Infiniti G37x Rep Power: 853	I know when I use my Aux cord and connect my phone to the car charger. I do get noice through the system. __________________ Need help with car audio or electronics? Let me know!! Need Help Let Me Know Direct email address reimermatt@gmail.com Owner of: Dynamic Mobile Audio Follow me below https://www.facebook.com/Dynamicmobileaudio/

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01-07-2015, 01:34 PM	#4 (permalink)
TreeSemdyZee Premium Member Join Date: Dec 2009 Location: Kentuck-IANA Age: 60 Posts: 4,885 Drives: '09 370 & ‘14 Juke Rep Power: 27408	I'm guessing it's the phone connection.