Connecting neg speaker leads together

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robertm

Member - Posts: 2

Joined: June 01, 2006

Location: Canada

Posted: June 01, 2006 at 9:37 PM / IP Logged

Hi Everyone,

I just bought a new CD/MP3 deck (Model No. JVC KD-G320) for my 1984 Chrysler New Yorker. I'd really like to use the factory speakers and wiring to keep things simple and cheap.

It turns out that the factory speaker wiring has the negative speaker leads of each side connected together...i.e., left front negative connects to left rear negative, and same on the right side (front negative connects to rear negative). On the other hand, the left and right negative wires do not connect, and none of the positive speaker wires connect.

Can anyone tell me whether this will cause any problems? I'm asking because the installation manual and a sticker on the deck itself cautions not to connect the negative speaker leads together, but I'm wondering whether this is a problem only if the right and left channels connect....I'm hoping it will be ok if the front and back negative leads (on each side) happen to be connected.

Any help would be greatly appreciated!

Thanks,

Rob

ferretvw

Copper - Posts: 188

Joined: September 29, 2005

Location: Pennsylvania, United States

Posted: June 01, 2006 at 10:49 PM / IP Logged

It's called a common ground system and if you connect the aftermarket deck that way it will either cause the deck's internal amplifier to go out or cause it to go into protection mode. You need to build a floating ground for it which I have completely forgotten how to do but maybe someone else can help. Or the other option is to run new speaker wires to each speaker.

auex

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Joined: December 23, 2002

Location: Arizona, United States

Posted: June 01, 2006 at 10:57 PM / IP Logged

Best option is to rewire the speakers.

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xtremej

Gold - Posts: 1,440

Joined: February 24, 2006

Location: United States

Posted: June 02, 2006 at 9:15 AM / IP Logged

Go to your local shop and see if they have any scraps laying around. Every time new spekers are installed they usually have 12' or so of wire left that they get in the box with new speakers. Even if they charge you I don't think it will be much. Oh, my suggestion is just to re-wire also Connecting neg speaker leads together -- posted image.

Connecting neg speaker leads together -- posted image.

robertm

Member - Posts: 2

Joined: June 01, 2006

Location: Canada

Posted: June 04, 2006 at 9:30 PM / IP Logged

Hi Everyone,

Thanks for the helpful replies. I ended up following your suggestions and just rewired the car...a bigger job than expected but it turned out well and the stereo works great! Thanks for all of your help.

Rob

forbidden

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Joined: November 01, 2003

Location: Alberta, Canada

Posted: June 05, 2006 at 12:25 AM / IP Logged

Another Canadian, where are you posting from Rob?

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Connecting neg speaker leads together

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