2004 GXP Speakers
-
300sflyer
- Posts like an LG3

- Posts: 317
- Joined: Mon May 26, 2008 6:17 pm
- Year and Trim: 2004 GXP
2003 SLE [SOLD] - Location: Stayner Ontario, Canada.
2004 GXP Speakers
Hey guys,
I was out driving around yesterday with the stereo on [Monsoon] and a bit louder than normal, and I heard some crackling... I like my music, and I just can't tolerate it! It seems to be coming from the rear deck speakers. I would imagine that after 10 years, they are simply worn out. Can anyone recommend a good replacement? I have not checked the size of them, but from reading on here, I would imagine they are 6x9s?
Thanks
I was out driving around yesterday with the stereo on [Monsoon] and a bit louder than normal, and I heard some crackling... I like my music, and I just can't tolerate it! It seems to be coming from the rear deck speakers. I would imagine that after 10 years, they are simply worn out. Can anyone recommend a good replacement? I have not checked the size of them, but from reading on here, I would imagine they are 6x9s?
Thanks
- crash93ssei
- Retired Moderator

- Posts: 7671
- Joined: Mon May 19, 2008 6:08 pm
- Year and Trim: 2002 SE
- Location: Midland, Michigan
Re: 2004 GXP Speakers
The rear deck speakers are 6×9s and they are actually subwoofers. I can't remember exactly but I believe they are 2 ohm and replacing them with a 4 ohm speaker will cut the volume down quite a bit.
Speakers don't really wear out, but they can deteriorate and often the surrounds will rip and make excess noise when the speakers move. Hop in the trunk and look up at them from the bottom, if you see any rips or tears in the cone and surround or missing pieces of surround they need to be replaced. Another thing to look for is loose speaker grills, the speaker itself loose in the mounting location, and one that has driven me nuts many times over the years is anything hard in the front door pockets will rattle when listening at high volume to a song with heavy bass.
Speakers don't really wear out, but they can deteriorate and often the surrounds will rip and make excess noise when the speakers move. Hop in the trunk and look up at them from the bottom, if you see any rips or tears in the cone and surround or missing pieces of surround they need to be replaced. Another thing to look for is loose speaker grills, the speaker itself loose in the mounting location, and one that has driven me nuts many times over the years is anything hard in the front door pockets will rattle when listening at high volume to a song with heavy bass.
Ryan

2003 Bonneville SSEi - The Black Mirror SOLD!
2002 Bonneville SE - The Mutt Complete 2004 SLE interior, drivetrain, and body harness swap, ECC swap, HUD swap, black GXP wheels, GXP headlights and tinted tails - SOLD
2003 BMW 540i M Sport, 2001 BMW X5 4.4i, 2010 GMC Acadia, 2017 Grand Design Imagine 3150BH
1982 Cutlass Supreme - The fun one

2003 Bonneville SSEi - The Black Mirror SOLD!
2002 Bonneville SE - The Mutt Complete 2004 SLE interior, drivetrain, and body harness swap, ECC swap, HUD swap, black GXP wheels, GXP headlights and tinted tails - SOLD
2003 BMW 540i M Sport, 2001 BMW X5 4.4i, 2010 GMC Acadia, 2017 Grand Design Imagine 3150BH
1982 Cutlass Supreme - The fun one
MattStrike wrote:It was the worst week of my life! *pause, drinks beer... smiles* But I'm better now!
-
300sflyer
- Posts like an LG3

- Posts: 317
- Joined: Mon May 26, 2008 6:17 pm
- Year and Trim: 2004 GXP
2003 SLE [SOLD] - Location: Stayner Ontario, Canada.
Re: 2004 GXP Speakers
I just crawled into the trunk to have a look. I don't see any rips or tears, and everything seems to be as it should. I guess its possible the crackling was coming from the rear door speakers. Since I am planning to keep the car for a few years, perhaps I should just bit the bullet and change them all out for new ones.
- nos4blood70
- Certified Bonneville Nut

- Posts: 9522
- Joined: Mon May 10, 2010 6:11 pm
- Year and Trim: 2003 SLE
- Location: Chicago, IL
Re: 2004 GXP Speakers
I believe GXPs have 4 ohm 6X9s, it was Bose that has the 2 ohms.
- crash93ssei
- Retired Moderator

- Posts: 7671
- Joined: Mon May 19, 2008 6:08 pm
- Year and Trim: 2002 SE
- Location: Midland, Michigan
Re: 2004 GXP Speakers
That could be, I don't recall if it was Bose, Monsoon, or both.
Ryan

2003 Bonneville SSEi - The Black Mirror SOLD!
2002 Bonneville SE - The Mutt Complete 2004 SLE interior, drivetrain, and body harness swap, ECC swap, HUD swap, black GXP wheels, GXP headlights and tinted tails - SOLD
2003 BMW 540i M Sport, 2001 BMW X5 4.4i, 2010 GMC Acadia, 2017 Grand Design Imagine 3150BH
1982 Cutlass Supreme - The fun one

2003 Bonneville SSEi - The Black Mirror SOLD!
2002 Bonneville SE - The Mutt Complete 2004 SLE interior, drivetrain, and body harness swap, ECC swap, HUD swap, black GXP wheels, GXP headlights and tinted tails - SOLD
2003 BMW 540i M Sport, 2001 BMW X5 4.4i, 2010 GMC Acadia, 2017 Grand Design Imagine 3150BH
1982 Cutlass Supreme - The fun one
MattStrike wrote:It was the worst week of my life! *pause, drinks beer... smiles* But I'm better now!
- CMNTMXR57
- Certified Bonneville Nut

- Posts: 5841
- Joined: Wed May 13, 2009 10:45 pm
- Year and Trim: 2006 STS-V, 2004 GTO, 2009 G8 GT
- Location: CHICAGO
Re: 2004 GXP Speakers
They're still garbage no matter what.
I replaced all my Monsoon speakers with Infinity Reference series speakers. Night and day difference. Especially when you have all the windows open, sunroof open, and you're traversing near the century mark. You can actually still hear them...
I replaced all my Monsoon speakers with Infinity Reference series speakers. Night and day difference. Especially when you have all the windows open, sunroof open, and you're traversing near the century mark. You can actually still hear them...

Retired Bonneville Owner and former GM Tech:
2004 Pontiac Bonneville GXP: Black/Ebony *SOLD*
Summer Toys: Combined 827 RWHP / 877lb/ft RWTQ
2004 Pontiac GTO: Impulse Blue Metallic/Black/M6: lots 'o mods, 415 RWHP / 405lb/ft RWTQ!
2006 Cadillac STS-V: Light Platinum Metallic/Light Gray/A6 - Spectre CAI, Magnaflow exhaust, Speed Inc. tune, 412 RWHP / 472lb/ft RWTQ
Daily Drivers:
2019 Chrysler Pacifica Limited: Mommy's new RGC
2015 Chrysler Town & Country Limited Platinum: Kids new RGC
2011 Camaro SS
2009 Pontiac G8 GT: L76, Sport Red Metallic
2004 GMC Sierra 2500HD: Victory Red - 8.1L Big Block and Allison
2003 Chevrolet Suburban 2500: Doeskin Tan - 8.1L Big Block... RIP
1999 Chevrolet Suburban: Sunset Gold Metallic - RIP
-
300sflyer
- Posts like an LG3

- Posts: 317
- Joined: Mon May 26, 2008 6:17 pm
- Year and Trim: 2004 GXP
2003 SLE [SOLD] - Location: Stayner Ontario, Canada.
Re: 2004 GXP Speakers
Did you replace the tweeters in the front doors too? Do you happen to recall all of the speaker sizes? I know the backs are 6x9s, and I believe the front and rear doors are 6.5". Did you put 2/3 ways in the rear deck, or just replace the sub woofers? If you went with 2/3 ways, did you change the amp as well? It would seem silly to replace the subs with 2/3 ways and only feed them with bass. It's difficult to tell how everything is wired up now.
Thanks.
Thanks.
- nos4blood70
- Certified Bonneville Nut

- Posts: 9522
- Joined: Mon May 10, 2010 6:11 pm
- Year and Trim: 2003 SLE
- Location: Chicago, IL
Re: 2004 GXP Speakers
Get a component set for the front so you can replace the awful tweeters as well. Rear doors are 5.25.
There's nothing wrong with using a 2/3 way for the sub spot. In fact, it will be hard/expensive to locate dedicated 6X9 subs.
There's nothing wrong with using a 2/3 way for the sub spot. In fact, it will be hard/expensive to locate dedicated 6X9 subs.
- CMNTMXR57
- Certified Bonneville Nut

- Posts: 5841
- Joined: Wed May 13, 2009 10:45 pm
- Year and Trim: 2006 STS-V, 2004 GTO, 2009 G8 GT
- Location: CHICAGO
Re: 2004 GXP Speakers
I know I did the deck, doors, and tweeters.
Since I've had the Caddy almost 5 years, and I did this several years before that while I owned the Bonneville, you'll have to excuse my lapse in memory as to what size the tweeters were.
Since I've had the Caddy almost 5 years, and I did this several years before that while I owned the Bonneville, you'll have to excuse my lapse in memory as to what size the tweeters were.

Retired Bonneville Owner and former GM Tech:
2004 Pontiac Bonneville GXP: Black/Ebony *SOLD*
Summer Toys: Combined 827 RWHP / 877lb/ft RWTQ
2004 Pontiac GTO: Impulse Blue Metallic/Black/M6: lots 'o mods, 415 RWHP / 405lb/ft RWTQ!
2006 Cadillac STS-V: Light Platinum Metallic/Light Gray/A6 - Spectre CAI, Magnaflow exhaust, Speed Inc. tune, 412 RWHP / 472lb/ft RWTQ
Daily Drivers:
2019 Chrysler Pacifica Limited: Mommy's new RGC
2015 Chrysler Town & Country Limited Platinum: Kids new RGC
2011 Camaro SS
2009 Pontiac G8 GT: L76, Sport Red Metallic
2004 GMC Sierra 2500HD: Victory Red - 8.1L Big Block and Allison
2003 Chevrolet Suburban 2500: Doeskin Tan - 8.1L Big Block... RIP
1999 Chevrolet Suburban: Sunset Gold Metallic - RIP
-
300sflyer
- Posts like an LG3

- Posts: 317
- Joined: Mon May 26, 2008 6:17 pm
- Year and Trim: 2004 GXP
2003 SLE [SOLD] - Location: Stayner Ontario, Canada.
Re: 2004 GXP Speakers
For you guys that replaced the rear 6x9 subs, with full frequency response 6x9 speakers: How did you power them? Did you replace the factory single channel amplifier as well? Still trying to wrap my head around the best way to do this. My preference is to keep the factory head unit.
Thanks
Thanks
- nos4blood70
- Certified Bonneville Nut

- Posts: 9522
- Joined: Mon May 10, 2010 6:11 pm
- Year and Trim: 2003 SLE
- Location: Chicago, IL
Re: 2004 GXP Speakers
You don't have to touch the amp, just connect the new speakers and forget about it.
-
300sflyer
- Posts like an LG3

- Posts: 317
- Joined: Mon May 26, 2008 6:17 pm
- Year and Trim: 2004 GXP
2003 SLE [SOLD] - Location: Stayner Ontario, Canada.
Re: 2004 GXP Speakers
nos4blood70 wrote:You don't have to touch the amp, just connect the new speakers and forget about it.
It's my understanding the crossover is in the amp. Aren't you then only getting bass out of the new 6x9's which have their own midrange and tweeters?
- CMNTMXR57
- Certified Bonneville Nut

- Posts: 5841
- Joined: Wed May 13, 2009 10:45 pm
- Year and Trim: 2006 STS-V, 2004 GTO, 2009 G8 GT
- Location: CHICAGO
Re: 2004 GXP Speakers
PnP.

Retired Bonneville Owner and former GM Tech:
2004 Pontiac Bonneville GXP: Black/Ebony *SOLD*
Summer Toys: Combined 827 RWHP / 877lb/ft RWTQ
2004 Pontiac GTO: Impulse Blue Metallic/Black/M6: lots 'o mods, 415 RWHP / 405lb/ft RWTQ!
2006 Cadillac STS-V: Light Platinum Metallic/Light Gray/A6 - Spectre CAI, Magnaflow exhaust, Speed Inc. tune, 412 RWHP / 472lb/ft RWTQ
Daily Drivers:
2019 Chrysler Pacifica Limited: Mommy's new RGC
2015 Chrysler Town & Country Limited Platinum: Kids new RGC
2011 Camaro SS
2009 Pontiac G8 GT: L76, Sport Red Metallic
2004 GMC Sierra 2500HD: Victory Red - 8.1L Big Block and Allison
2003 Chevrolet Suburban 2500: Doeskin Tan - 8.1L Big Block... RIP
1999 Chevrolet Suburban: Sunset Gold Metallic - RIP
- nos4blood70
- Certified Bonneville Nut

- Posts: 9522
- Joined: Mon May 10, 2010 6:11 pm
- Year and Trim: 2003 SLE
- Location: Chicago, IL
Re: 2004 GXP Speakers
Yes, but swapping the amp out while keeping the stock head unit is a much more involved process than just replacing the speakers is. There is nothing wrong with not using the new 6X9s' other drivers.
- CMNTMXR57
- Certified Bonneville Nut

- Posts: 5841
- Joined: Wed May 13, 2009 10:45 pm
- Year and Trim: 2006 STS-V, 2004 GTO, 2009 G8 GT
- Location: CHICAGO
Re: 2004 GXP Speakers
Just saying all I did was PnP. I'm not an audiophile. Don't care. Just didn't want to listen to distortion from music that matched the noise from driving at elevated volumes. 

Retired Bonneville Owner and former GM Tech:
2004 Pontiac Bonneville GXP: Black/Ebony *SOLD*
Summer Toys: Combined 827 RWHP / 877lb/ft RWTQ
2004 Pontiac GTO: Impulse Blue Metallic/Black/M6: lots 'o mods, 415 RWHP / 405lb/ft RWTQ!
2006 Cadillac STS-V: Light Platinum Metallic/Light Gray/A6 - Spectre CAI, Magnaflow exhaust, Speed Inc. tune, 412 RWHP / 472lb/ft RWTQ
Daily Drivers:
2019 Chrysler Pacifica Limited: Mommy's new RGC
2015 Chrysler Town & Country Limited Platinum: Kids new RGC
2011 Camaro SS
2009 Pontiac G8 GT: L76, Sport Red Metallic
2004 GMC Sierra 2500HD: Victory Red - 8.1L Big Block and Allison
2003 Chevrolet Suburban 2500: Doeskin Tan - 8.1L Big Block... RIP
1999 Chevrolet Suburban: Sunset Gold Metallic - RIP
-
300sflyer
- Posts like an LG3

- Posts: 317
- Joined: Mon May 26, 2008 6:17 pm
- Year and Trim: 2004 GXP
2003 SLE [SOLD] - Location: Stayner Ontario, Canada.
Re: 2004 GXP Speakers
Replaced the subs and both front and rear door speakers with Kicker speakers yesterday. It is sounding much better.
I would still like to change the tweeters in the front doors. Anyone have a good recommendation that will fit in the stock speaker location?
Thanks
Thanks
- nos4blood70
- Certified Bonneville Nut

- Posts: 9522
- Joined: Mon May 10, 2010 6:11 pm
- Year and Trim: 2003 SLE
- Location: Chicago, IL
Re: 2004 GXP Speakers
You'll likely need to grab a spare pair of tweeter housings and glue them in. There is no direct drop in. Some form a rigging will have to occur. However, if you got coaxials for the front doors (shame on you
) then you might as well just disconnect the tweeters.
- bobgto65
- Posts like an L36

- Posts: 866
- Joined: Thu May 29, 2008 7:52 pm
- Year and Trim: 2002 SSEi
2004 Bonneville GXP - Location: Maryland
Re: 2004 GXP Speakers
The subs on the rear deck are wired in series and controlled by the crossover in the factory amp. The best solution is to replace them with triaxial 6 x 9 and wire them to the rear door speaker outputs from the amp, and leave the rear doors disconnected. You can get a set if JBL GTO 2 component speakers and tweeters for the front doors. They make a big difference. Just wire to the existing wires and they are a direct fit (and do not use the supplied crossover).
bobgto65

2004 Bonneville GXP 62,000 miles purchased 04/13
2009 G8 GXP PBM, M6 9580 miles, no mods, sold 08/15
2009 G8 GT SBM 36,000 miles, modded 430 whp
2002 Bonneville SSEi 203,200 miles (sold 3/2014)

2004 Bonneville GXP 62,000 miles purchased 04/13
2009 G8 GXP PBM, M6 9580 miles, no mods, sold 08/15
2009 G8 GT SBM 36,000 miles, modded 430 whp
2002 Bonneville SSEi 203,200 miles (sold 3/2014)
- bobgto65
- Posts like an L36

- Posts: 866
- Joined: Thu May 29, 2008 7:52 pm
- Year and Trim: 2002 SSEi
2004 Bonneville GXP - Location: Maryland
Re: 2004 GXP Speakers
The subs on the rear deck are wired in series and controlled by the crossover in the factory amp. The best solution is to replace them with triaxial 6 x 9 and wire them to the rear door speaker outputs from the amp, and leave the rear doors disconnected. You can get a set if JBL GTO 2 component speakers and tweeters for the front doors. They make a big difference. Just wire to the existing wires and they are a direct fit (and do not use the supplied crossover).
bobgto65

2004 Bonneville GXP 62,000 miles purchased 04/13
2009 G8 GXP PBM, M6 9580 miles, no mods, sold 08/15
2009 G8 GT SBM 36,000 miles, modded 430 whp
2002 Bonneville SSEi 203,200 miles (sold 3/2014)

2004 Bonneville GXP 62,000 miles purchased 04/13
2009 G8 GXP PBM, M6 9580 miles, no mods, sold 08/15
2009 G8 GT SBM 36,000 miles, modded 430 whp
2002 Bonneville SSEi 203,200 miles (sold 3/2014)


