Want To Replace Factory Speakers

michigan2500hd · December 15, 2008

I have a NNBS 07 seirra,SLE, ext. cab with a Bose. I noticed that the rear pass. door had no sound coming out so the dealer replaced the speaker just to have it "pop" when they tested it. They say it is not a warrenty item because i have a Aftermarket amp. The amp is only powering 2 subs under the rear seat. I do have a PAC adaptor plugged in under the center console with RCA outs going to the sub. My question is can i replace the two rear factory speakers in the rear doors with aftermarket speakers? Will they work ok with the Bose? I would like some that will fit without and modifacation to the door panels in possible.

stadt11 · December 15, 2008

Don't mix-n-match..., it would be best to either find replacements or replace all of them & amp 'em.

Front Speakers - 6.5", Rear Speakers - 6.5"

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FYI - Your truck isn't referred to as a NNBS around here, it's actually a GMT900 (GMT800 is for the '07 Classic and older).

DofD · December 15, 2008

You can replace the Bose speaker with another brand but it won't sound very good as the Bose speakers are Ohm matched to that of the Bose amp and it's not a common Ohm rating either. The bigger question would be why is that speaker blowing so often. Is there a short in the wiring causing it. I'd do some tests with a multimeter to see if the wiring to that speaker is acting as it should compared to the other speakers.

michigan2500hd · December 15, 2008

Don't mix-n-match..., it would be best to either find replacements or replace all of them & amp 'em.

Front Speakers - 6.5", Rear Speakers - 6.5"

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FYI - Your truck isn't referred to as a NNBS around here, it's actually a GMT900 (GMT800 is for the '07 Classic and older).

Thanks for clarifing that,lol. I knew it was a GMT900 and should have said that.

I do like the sound of the bose but it needed some help in the way of bass. I had a MTX plastic box i had bought for my crew cab that fit behind the rear seat that i am using now. Of course my ext. cab seats dont fold down, they fold up and it doesnt fit well on the floor. I added a kenwood amp so that took care of the bass. Once the techs saw my amp ( i took the box out before taking it to the dealer) they blamed the speaker blowing on it. DUH....it only operates the subs. But GM took a stand and said it was the amps fault. I am going to hook up a cheap speaker i have laying around and see if that blows when i hook it up to the wires in the door. But looks like i am waiting untill spring now because Michigan is too cold to be messing with it now.

stadt11 · December 15, 2008

Thanks for clarifing that,lol. I knew it was a GMT900 and should have said that.
I do like the sound of the bose but it needed some help in the way of bass. I had a MTX plastic box i had bought for my crew cab that fit behind the rear seat that i am using now. Of course my ext. cab seats dont fold down, they fold up and it doesnt fit well on the floor. I added a kenwood amp so that took care of the bass. Once the techs saw my amp ( i took the box out before taking it to the dealer) they blamed the speaker blowing on it. DUH....it only operates the subs. But GM took a stand and said it was the amps fault. I am going to hook up a cheap speaker i have laying around and see if that blows when i hook it up to the wires in the door. But looks like i am waiting untill spring now because Michigan is too cold to be messing with it now.

Sounds like you have some unreliable techs that don't know what they are doing, therefore they "persuaded" GM to think it was the amps fault without doing any real investigating. Pure Laziness! How did they "prove" it was the amp-that-wasn't-pushing-that-speaker's fault?

These kind of people irritate me

michigan2500hd · December 16, 2008

My original question should have stated that i was looking for a pair of rear door speakers that will fit without any mods to the doors and wont hinder the window or anything else. From the front i cant even hear that the speaker was blown so i am not in any big hurry to do something about it. I am hoping to find a good set and maybe get free installation somewhere so i dont have to freeze my butt of messing with it. Any suggestions on brands that will sound decent with the Bose amp?

Sierra250004 · December 18, 2008

My original question should have stated that i was looking for a pair of rear door speakers that will fit without any mods to the doors and wont hinder the window or anything else. From the front i cant even hear that the speaker was blown so i am not in any big hurry to do something about it. I am hoping to find a good set and maybe get free installation somewhere so i dont have to freeze my butt of messing with it. Any suggestions on brands that will sound decent with the Bose amp?

Go to crutchfield.com.. Best site for audio/electronics.. they can help/