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Want to add sub to '04 Suburban w/Bose

dmeals

By dmeals
in Audio, Electronics & Software

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dmeals New Member

dmeals

Posted
Posted

I would like to add a sub to my '04 Suburban. Have bose speakers but no sub. There appears to be a sub cut-out in the rear panel, drivers side. I suspect this is where a optional factory sub was to be located. Any suggestions appreciated!

dmeals New Member

dmeals

Posted
  • Author
Posted
I would like to add a sub to my '04 Suburban.  Have bose speakers but no sub.  There appears to be a sub cut-out in the rear panel, drivers side.  I suspect this is where a optional factory sub was to be located.  Any suggestions appreciated!

 

 

 

 

 

Not even sure I have a sub??? How can I determine?

vhato Enthusiast

vhato

Posted
Posted
I would like to add a sub to my '04 Suburban.  Have bose speakers but no sub.  There appears to be a sub cut-out in the rear panel, drivers side.  I suspect this is where a optional factory sub was to be located.  Any suggestions appreciated!

 

 

 

 

 

Not even sure I have a sub??? How can I determine?

 

 

 

 

 

I thought ALL '04s with the Bose Stereo has a Subwoofer under the center console? However, if you didn't have the center console, then there would be no place for a Subwoofer. Do you have a center console?

COZWV Enthusiast

COZWV

Posted
Posted

If you look under the dash where the center console meets the dash (this is with your head up under the dash) you can just see the back of the sub. It is aimed straight back towards the center console. The AMP for the sub is under the storage bin of the center console.

 

If you have the Sub then you can use the AOEM-GM24 from Pac Audio to plug into the wiring harness at the existing amp. This will give you the RCA's you need to hook up an additional amp and doesn't affect your factory system. I just hooked up an Infinity basslink sub last night in my 04 SS. Works fine.

 

COZWV

 

here is a web site showing the install with pics.

 

Sub install

 

I may take a pic of where the sub is today. I still have to put my console back together after I hide the wires for the basslink.

dmeals New Member

dmeals

Posted
  • Author
Posted

Thanks. Located the sub in the front of the console. Want to install a sub in the rear panel just in front of the drivers side rear door. This panel is molded with a fake looking speaker in the panel. Guess this may be the cut-out for earlier versions prior to mounting the sub up front. Feel like a powered sub in the rear would definately give me a little more thump. Suggestions appreciated.

COZWV Enthusiast

COZWV

Posted
Posted
The amp in the console powers the whole system correct?, not just the sub?

 

 

 

 

Well I do know if you disconnect the wiring harness at the sub you lose all the sound! So I guess it does power the whole thing.

BBSilverado Enthusiast

BBSilverado

Posted
Posted

You could use a LOC at the factory sub and then run rca's back to your new amp/powered sub.

A LOC is a line output converter that will give you a set of rca preouts to feed your new amp.

They are available at all audio shops for about $20.

cp_2302 New Member

cp_2302

Posted
Posted
Anyone happen to know if there is a gain control on the amp anywhere ?

 

 

 

There is no gain control on the amp. The system is controlled by the Bose amp. The amp should have a microphone in the driver area that adjusts volume and sound curves according to the interior sound levels. I have a 2004 that sounded weak and muddy. I found a Cadillac service center that was familiar with Bose setups in GM vehicles. He connected my Yukon to a computer and recalibrated the sound space for the vehicle. This helped but the sub was still weak. He found that the mic in the headliner had a pinched / shorted wire. The mic cable was repaired and the system recalibrated. The system sounds clearer and with the bass turned up it is decent. Aftermarket would be best but the Bose sub will do as well as any 75 watt 8" on the market.

 

If you change your factory radio, you will need to keep the factory unit under the passenger seat with a extension cable or buy a adapter from PAC. You will loose all warning tones for your vehicle without the adapter or the factory radio connected to the wiring harness. This includes the low fuel, tire pressure warning, low traction, door ajar, key reminder... so on.

 

I would rather buy a PAC Audio adapter than try splicing into the wiring. The Bose system alters the sound signals to match their speakers. The radio and steering wheel controls are all on the Data Bus that runs all 4 computers on the Yukon / Tahoe vehicles. If you mess with the data bus the computer will fault, and when you take it in the dealer will know...

 

I have to take the truck back soon. The cable in the headliner is loose and is vibrating / moving above the headliner now, but that is what warranties are for.

Loach Enthusiast

Loach

Posted
Posted

Thanks for the in depth reply. It may have seemed like a silly question but what amp has no gain on it. It does kinda figure though. They don't want the interior to rattle loose before the warranty is up.

 

I have the PAC adapter coming and will just add my 8" Bazooka.

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