Stereo Wiring Blues - **HELP NEEDED PLEASE** - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ashx2 · 11-12-2008, 12:21 AM

I picked up a Pioneer KP-A100 cassette stereo. It has the wires handwritten on the top of the unit. They go like this:

Blue= Void
Grey= Right Spkr
Green= Left Spkr
Red= 12v power sourch
Blk= common ground

When wiring this unit up, shouldn't there be additional ground wires for the speakers? Or does the positive side of the spkr wire connect up to the wire coming out of the back of the stereo and the ground side of the spkrs get wired to common ground.

It's been a long time since I played w/stereo equipment........and I'm beginning to remember why.

Anybody have a clue as to how this should be wired?

Thanks,
Greg

72BLUZ · 11-12-2008, 01:50 AM

it seems to me that if they are not any ground wires from the radio to the speakers you may need to ground the speaker back to the speakers

dan42 · 11-12-2008, 01:53 AM

-That's why I pay somebody to do it now. When I was a kid I used to do all my own stereo installations, they really are easy...but I have forgotten now.

*MonteSS454* · 11-12-2008, 01:55 AM

Yes there should be a grey and green wire coming out the back witha black line in it to represent a ground.

tommyd241 · 11-12-2008, 12:01 PM

Quote:

Originally Posted by ashx2

Blue= Void
Grey= Right Spkr
Green= Left Spkr
Red= 12v power sourch
Blk= common ground

Those are the only wires the deck has? You should have Grey(Right Front +), Grey/Black(Righ Front -) and White(Left Front +) White/black(Left Front -).

http://www.the12volt.com/caraudio/headunitharness.asp

Hoods69BadBowTie · 11-12-2008, 12:19 PM

Quote:

Originally Posted by tommyd241

Those are the only wires the deck has? You should have Grey(Right Front +), Grey/Black(Righ Front -) and White(Left Front +) White/black(Left Front -).

http://www.the12volt.com/caraudio/headunitharness.asp

x2

AceX · 11-12-2008, 07:52 PM

Agreed with the last two posts.

You can get your 12v power from the acc. wire in the steering column or in the original radio harness. The grounding wire should use a ground that it already being used somewhere under the dash or on the firewall if the wire will reach.

drummin89 · 11-12-2008, 08:32 PM

Quote:

Originally Posted by ashx2

When wiring this unit up, shouldn't there be additional ground wires for the speakers? Or does the positive side of the spkr wire connect up to the wire coming out of the back of the stereo and the ground side of the spkrs get wired to common ground.

by the amount of wires you posted that would sound correct to me.

How old is this radio?

cdowns · 11-12-2008, 08:40 PM

no need for ground wire from radio to speakers//ground from radio to body ground from speakers to body then everything is sharing the common ground of the body to the frame from the frame to the battery

bigchad64 · 03-12-2009, 01:52 PM

Thanks for this post, I used the wiring above to solve my radio installation mystery.

11-12-2008, 12:21 AM	#1
ashx2 Registered User Join Date: Aug 2008 Location: Graham, Texas Posts: 239	Stereo Wiring Blues - HELP NEEDED PLEASE I picked up a Pioneer KP-A100 cassette stereo. It has the wires handwritten on the top of the unit. They go like this: Blue= Void Grey= Right Spkr Green= Left Spkr Red= 12v power sourch Blk= common ground When wiring this unit up, shouldn't there be additional ground wires for the speakers? Or does the positive side of the spkr wire connect up to the wire coming out of the back of the stereo and the ground side of the spkrs get wired to common ground. It's been a long time since I played w/stereo equipment........and I'm beginning to remember why. Anybody have a clue as to how this should be wired? Thanks, Greg

11-12-2008, 01:50 AM	#2
72BLUZ Registered User Join Date: Nov 2006 Location: lafayette, ga. Posts: 832	Re: Stereo Wiring Blues - HELP NEEDED PLEASE it seems to me that if they are not any ground wires from the radio to the speakers you may need to ground the speaker back to the speakers __________________ Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same.... Ronald Reagan

11-12-2008, 01:53 AM	#3
dan42 Registered User Join Date: Feb 2007 Location: Cali Central Coast Posts: 5,191	Re: Stereo Wiring Blues - HELP NEEDED PLEASE -That's why I pay somebody to do it now. When I was a kid I used to do all my own stereo installations, they really are easy...but I have forgotten now. __________________ '67 SWB Fleetside ZZ4/350/Tremec 5-speed/4link/Scott's IFS - and fun as heck! SOLD Click here to support the board Philippians 4: 6-7

11-12-2008, 01:55 AM	#4
MonteSS454 Account Suspended Join Date: Jun 2007 Location: Claremore, Oklahoma Posts: 821	Re: Stereo Wiring Blues - HELP NEEDED PLEASE Yes there should be a grey and green wire coming out the back witha black line in it to represent a ground.

11-12-2008, 07:52 PM	#7
AceX >130dB Moderator Join Date: Aug 2006 Location: Sacramento, CA Posts: 2,130	Re: Stereo Wiring Blues - HELP NEEDED PLEASE Agreed with the last two posts. You can get your 12v power from the acc. wire in the steering column or in the original radio harness. The grounding wire should use a ground that it already being used somewhere under the dash or on the firewall if the wire will reach. __________________ Living Life @ 130dB LED Tail Light Conversion; How-to Friend. Father. Brother. RIP El Jay ------------------------------------------------------------------------------------------------------------------------- CLICK HERE and for less than $0.07 a day, you too can help support and build a better forum.

11-12-2008, 08:40 PM	#9
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Stereo Wiring Blues - HELP NEEDED PLEASE no need for ground wire from radio to speakers//ground from radio to body ground from speakers to body then everything is sharing the common ground of the body to the frame from the frame to the battery __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

03-12-2009, 01:52 PM	#10
bigchad64 Registered User Join Date: Feb 2009 Location: Independence, MO Posts: 10	Re: Stereo Wiring Blues - HELP NEEDED PLEASE Thanks for this post, I used the wiring above to solve my radio installation mystery.



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