Stereo Amp help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chevyboy55 · 06-09-2007, 08:35 PM

My son & I are finally about finished with his truck(pics will follow)
Well today when we were putting the stereo back in we hooked up the amp & subs & nothing! We have power going into the amp but no sound comes out of the subs. Now I will be the first to admit that I don't know squat about stereos.
Should I have power at the speakers(checking with a test light?) I don't have any. It worked fine a year & a half ago when we tore it apart to paint.The stereo works fine when playing through the 6x9's & dash speaker.It's a 1000 watt Alpine amp. Ground is good(we used it to test power coming in) I'm just trying to throw all info I can out here.Any ideas?

GREASEMONKEY72 · 06-09-2007, 08:50 PM

are the subs in a box and youre hooking the wires up to the clips on the box? if so pull the speaker out and make sure the wires didnt fall off inside, happened to me

Alexis · 06-09-2007, 09:18 PM

check the fuses on the amp. Also check if the "amp wire" form the head unit is not the antenna wire, also make sure to test it. But check fuses first. If you have a nextel we can talk over the radio. I use to work un car audio so I might be of some help.

Also "working backwards" when trying to find troubled wiring seem to work best. Start at the amp then go back retracing each wire.

corn · 06-09-2007, 10:39 PM

Im guessing its the rca connectors either on the head unit or on the amp not hooked up or the remote turn on lead unhooked. Id start at the remote turn on lead. Your test light wont be any help on the speakers. Does the amp light up when powered up?

shifty · 06-09-2007, 10:42 PM

Is there a power light on the amp?

if yes, i don't know what to tell you.

if no, then all you should know is this: you MUST hook up three wires to make the amp turn on:

12V+ power
Ground (must be a good ground!!)
Remote Turn-on lead (this is usually a blue wire from your head unit to the amp)

As a temporary solution to check things out, you can run a 18ga jumper from the 12V power line to the turn-on lead.

chevyboy55 · 06-10-2007, 12:33 PM

I hope I don't look as stupid as I feel.The blue remote turn on wire was not connected

Kinda cool how things work correctly when everythings hooked up.

shifty · 06-10-2007, 12:45 PM

I've seen more people than you know forget that!! (hence why i mentioned it

)

redneckgirl · 06-10-2007, 12:55 PM

I moved this to 'Truck' Audio....
even though you got your problem fixed, I thought it might serve as a good reminder for others

boatpuller · 06-10-2007, 01:01 PM

sheeesh..........leave it to you kelso guy's.

06-09-2007, 08:35 PM	#1
chevyboy55 Senior Member Join Date: Aug 2004 Location: Kelso,Wa Posts: 3,637	Stereo Amp help My son & I are finally about finished with his truck(pics will follow) Well today when we were putting the stereo back in we hooked up the amp & subs & nothing! We have power going into the amp but no sound comes out of the subs. Now I will be the first to admit that I don't know squat about stereos. Should I have power at the speakers(checking with a test light?) I don't have any. It worked fine a year & a half ago when we tore it apart to paint.The stereo works fine when playing through the 6x9's & dash speaker.It's a 1000 watt Alpine amp. Ground is good(we used it to test power coming in) I'm just trying to throw all info I can out here.Any ideas? __________________ Great minds think alike,So do ours

06-09-2007, 08:50 PM	#2
GREASEMONKEY72 Registered User Join Date: Aug 2006 Location: Bakersfield,CA Posts: 7,893	Re: Stereo Amp help are the subs in a box and youre hooking the wires up to the clips on the box? if so pull the speaker out and make sure the wires didnt fall off inside, happened to me __________________ -steven Alte Seele S.S. "Allison" '72 C/10 LWB 350SB/TH350 - DD PITBULL IS NOT A CRIME

06-09-2007, 09:18 PM	#3
Alexis Member since 2000 Join Date: Dec 2000 Location: Mountain View Ca / Mexico Posts: 7,874	Re: Stereo Amp help check the fuses on the amp. Also check if the "amp wire" form the head unit is not the antenna wire, also make sure to test it. But check fuses first. If you have a nextel we can talk over the radio. I use to work un car audio so I might be of some help. Also "working backwards" when trying to find troubled wiring seem to work best. Start at the amp then go back retracing each wire. Last edited by Alexis; 06-09-2007 at 09:21 PM.

06-09-2007, 10:39 PM	#4
corn Registered User Join Date: Dec 2003 Location: here Posts: 5,789	Re: Stereo Amp help Im guessing its the rca connectors either on the head unit or on the amp not hooked up or the remote turn on lead unhooked. Id start at the remote turn on lead. Your test light wont be any help on the speakers. Does the amp light up when powered up?

06-09-2007, 10:42 PM	#5
shifty Questionable Join Date: Mar 2005 Location: Atlanta Posts: 13,373	Re: Stereo Amp help Is there a power light on the amp? if yes, i don't know what to tell you. if no, then all you should know is this: you MUST hook up three wires to make the amp turn on: 12V+ power Ground (must be a good ground!!) Remote Turn-on lead (this is usually a blue wire from your head unit to the amp) As a temporary solution to check things out, you can run a 18ga jumper from the 12V power line to the turn-on lead. __________________ If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link) I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM.

06-10-2007, 12:33 PM	#6
chevyboy55 Senior Member Join Date: Aug 2004 Location: Kelso,Wa Posts: 3,637	Re: Stereo Amp help I hope I don't look as stupid as I feel.The blue remote turn on wire was not connected Kinda cool how things work correctly when everythings hooked up. __________________ Great minds think alike,So do ours

06-10-2007, 12:45 PM	#7
shifty Questionable Join Date: Mar 2005 Location: Atlanta Posts: 13,373	Re: Stereo Amp help I've seen more people than you know forget that!! (hence why i mentioned it ) __________________ If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link) I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM.

06-10-2007, 12:55 PM	#8
redneckgirl Registered User Join Date: Jun 2006 Location: Bel Air, Maryland Posts: 4,853	Re: Stereo Amp help I moved this to 'Truck' Audio.... even though you got your problem fixed, I thought it might serve as a good reminder for others __________________ The place where you made your stand never mattered. Only that you were there... and still on your feet. Stephen King

06-10-2007, 01:01 PM	#9
boatpuller Registered User Join Date: Sep 2005 Location: Sun City West, Az Posts: 3,822	Re: Stereo Amp help sheeesh..........leave it to you kelso guy's. __________________ " Never look up a dead dogs butt." Last edited by boatpuller; 06-10-2007 at 02:28 PM.



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