Bad humming noise!! Please help me out!!!

mrksmag3 · 04-20-2007, 08:56 PM

How do i start? Well,i have already installed a pioneer deck,am/fm/cd,I decided to upgrade to a avhp-4900 am/fm/cd/dvd/flipout screen.Ive tried 3 different units all having the same issue.With the volume turned all the way down,right from the start there is a horrific noise.The first deck i had no problems with whatsoever,NONE! But as soon as i go to install the new dvd deck(s) there is this big issue.Ive tried running a new ground,new rca"s, bypassing the factory harness(my own power,ground,constant)I tested the speakers by disconnecting the leads from the amp,then hooking the leads to a 9-volt battery to double check proper connection and to check for the speakers grounding out somewhere.Ive never encountered these issues before,its very stressful indeed!! I tried running the ground from the deck straight to the same ground as the two amps and the crossover are,still,no help.The last thing im going to try is to hook up the door and rear panel speakers together without using the harness,can ANYONE help me or have any ideas??Any help would be grateful!! I love my magnum,but i need music and would love video as well.Thanks very much!!!!!

Mark

tiggs11 · 04-21-2007, 09:31 AM

sounds like a bad ground, the one i put in my old car did that and i added a better ground and it went away

waynedelisle · 04-21-2007, 09:38 AM

make sure the rca wires are as far away from the power wire as you can get them

1sickpuppy · 04-21-2007, 05:31 PM

Yeah waynedelisle is right you don't want your power cable close to anywires basically.

mrksmag3 · 04-22-2007, 02:49 PM

Thanks for all your advice!! Turns out,it was a bad amplifier going to the door
and rear panel speakers.Not sure what caused the amp to go bad,but had a stereo shop check everything else out completely.Sounds great again,and enjoying the new deck!! Even applied another coat of wax to the magnum
to help with the celebration!!!!! Take care and thanks again!!

Mark

04-20-2007, 08:56 PM	#1
mrksmag3 Junior Member Join Date: Mar 2007 Posts: 6 iTrader: (0)	Bad humming noise!! Please help me out!!! How do i start? Well,i have already installed a pioneer deck,am/fm/cd,I decided to upgrade to a avhp-4900 am/fm/cd/dvd/flipout screen.Ive tried 3 different units all having the same issue.With the volume turned all the way down,right from the start there is a horrific noise.The first deck i had no problems with whatsoever,NONE! But as soon as i go to install the new dvd deck(s) there is this big issue.Ive tried running a new ground,new rca"s, bypassing the factory harness(my own power,ground,constant)I tested the speakers by disconnecting the leads from the amp,then hooking the leads to a 9-volt battery to double check proper connection and to check for the speakers grounding out somewhere.Ive never encountered these issues before,its very stressful indeed!! I tried running the ground from the deck straight to the same ground as the two amps and the crossover are,still,no help.The last thing im going to try is to hook up the door and rear panel speakers together without using the harness,can ANYONE help me or have any ideas??Any help would be grateful!! I love my magnum,but i need music and would love video as well.Thanks very much!!!!! Mark

04-21-2007, 05:31 PM	#4
1sickpuppy Senior Member Join Date: Jul 2006 Posts: 287 iTrader: (0)	Yeah waynedelisle is right you don't want your power cable close to anywires basically.
	1sickpuppy's Sig: 06 Magnum RT JBA headers,JBA exhaust, JBA mid pipes 22 Akuza Korrupts Superchips custom program, Keystone hood, Danko Grill and lower front end chin, halo headlights, Jet low temp thermostat, tinted front windows, tinted windshield, and Injen PowerFlow intake. future mods: supercharger.

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04-21-2007, 09:31 AM	#2
tiggs11 Senior Member Join Date: Feb 2007 Location: courtenay b.c. Posts: 152 iTrader: (0)	sounds like a bad ground, the one i put in my old car did that and i added a better ground and it went away

04-21-2007, 09:38 AM	#3
waynedelisle Junior Member Join Date: Apr 2006 Posts: 9 iTrader: (0)	make sure the rca wires are as far away from the power wire as you can get them

04-22-2007, 02:49 PM	#5
mrksmag3 Junior Member Join Date: Mar 2007 Posts: 6 iTrader: (0)	Thanks for all your advice!! Turns out,it was a bad amplifier going to the door and rear panel speakers.Not sure what caused the amp to go bad,but had a stereo shop check everything else out completely.Sounds great again,and enjoying the new deck!! Even applied another coat of wax to the magnum to help with the celebration!!!!! Take care and thanks again!! Mark