Installing 6x9s in 97 Pontiac Grand Prix

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=36383
Printed Date: May 13, 2025 at 8:45 AM

Topic: Installing 6x9s in 97 Pontiac Grand Prix

Posted By: jmcgraw24
Subject: Installing 6x9s in 97 Pontiac Grand Prix
Date Posted: July 29, 2004 at 8:19 AM

I've just installed a set of 6x9s in the back of my wifes Grand Prix. There are two sets of wires going to the 4" and the 6x9s in the stock configuration. The wires for the 6x9s will not work alone, so I hooked the new speakers up to the wires for the 4" speakers. Now all I get is midrange and highs. I'm assuming there is an external crossover somewhere sending the 4" speakers midrange and highs and the 6x9s the bass. Could someone enlighten me on this. It's not the bose system, just the Delco one (front 5 1/4' components and 4" and 6x9s in the rear). Thanks.

Replies:

Posted By: dudek38
Date Posted: July 29, 2004 at 9:24 AM

i don't get it. where are the 4"s? the car is only supposed to have 5.25 and 6x9's? i just dont understand the setup.

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owner of
Motion Marine & Car Audio
the florida keys

Posted By: bestbuy
Date Posted: July 29, 2004 at 10:18 AM

I would like to know the answer to that also, because in my bro's 98 trans am the same thing happened.

Posted By: sparkie
Date Posted: July 29, 2004 at 2:30 PM

There is an amp under the passenger side of the dash that powers all six speakers in the car. It has an internal crossover to split the low and upper frequencies to the rear speakers. The may be able to use the rear speaker output wires off the back of the radio, but the signal may be too low. If it's too low, consider replacing the deck with a good aftermarket one. You'll love the improvement.

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sparky

Posted By: jmcgraw24
Date Posted: July 30, 2004 at 10:16 AM

Thanks, that's what I thought. She'll just have to deal with it until I get her a new deck and run some new wires. Thanks.