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-   -   Bose System, Subs, Head Unit, New to Impalas (http://www.impalaforums.com/audio-video-and-electronics/390626-bose-system-subs-head-unit-new-to-impalas.html)

TTW07 08-06-2013 06:19 PM

Bose System, Subs, Head Unit, New to Impalas
 
I just bought a 2012 Impala LTZ with the Bose system and I have a lot of questions. I intend to add subs and replace the speakers when I have the time and money. Right now I just want to replace the head unit. Can I use any head unit or does it have to be something specific because of the Bose? Will replacing the speakers be a problem at all? Is it even worth it to replace the head unit and speakers? If so, are there any head unit/speaker combinations that are recommended for this car? Does the Bose system need a specific wiring harness and if I replace head unit and speakers, would it still need said wiring harness?

And unrelated, does anyone know where I can get the Impala emblems for the side of the car?

Any help is greatly appreciated!

Blackmel 08-09-2013 11:15 AM

I owned a 99 grand prix before I bought my ltz that had the bose in it. To be honest it was a mistake (and costly) to replace ALL the speakers in my grand prix. The factory bose in the GP is very good. I was actually able to replace the radio with an aftermarket without adding any extra harnesses or anything and the sound quality improved dramatically. When I decided to replace the speakers that was another matter. All 8 speakers plus the factory amp had to go and although everything sounded good there was no bass in the new speakers. They also had to run ALL NEW WIRES. I had professionals do it. I bought some subs to give me some bass and the quality was great but if I had to do it all over again I would've kept the grand prix factory except for the radio.

As for these Impalas with the bose, the system is essentially the same but since you probably have Xm and onstar, if you want to replace the radio, yes u would need a special harness (which I believe costs $150 alone). Actually u will need several diffetent harnesses if u want to retain the chimes, onstar, steering wheel controls, etc. I believe u can just add subs and an amp without replacing anything and it will be cheaper and easier but u may not have the best sound. I really don't know what your budget is. If its unlimited then by all means replace everything. If u are looking for a budget build then u will probably be out of luck unless u can get everything for free. I have a 2012 also with the bose and after going through what I went through with the grand prix, I will never replace the speakers or radio in any car I own again. This is just my personal preference of course :)

Blackmel 08-09-2013 12:13 PM

You can use pretty much any radio you want but u will need probably several harnesses. You don't need any harnesses for the speakers but the shop (if u have it done there) may run new wires.

Its always worth it to replace anything factory if you have a love and passion for music but its not worth it if you plan on selling the car soon or you don't particularly care for sound quality. If u think u can live with the factory system (save for the radio) then it may not be a good idea to replace them. Like I said it can get very expensive. Hope this helps. Feel free to ask me anything else.

plano-doug 08-09-2013 02:25 PM

Quote:

Originally Posted by Blackmel (Post 834385)
I believe u can just add subs and an amp without replacing anything and it will be cheaper and easier but u may not have the best sound.

That's all I did in my SS. I am very pleased with the Bose system other than its lack of low end. (It may be lacking some on the high end, too, but my ears are way too old to notice that anymore!) Having the extra low end makes it very satisfying. I wasn't going for bump - just more oomph.

I moved the factory amp from the rear deck and mounted a 10" sub there with a 150Wrms amp driving it. (150Wrms is something like 500 marketing BS watts...) The factory amp was relocated alongside the sub amp, in the trunk below the package tray. No wire splicing or longer cables were needed to move the factory amp.

The sub looks nearly identical to this:
http://www.doug79.com/stereo-cory/rings-p.jpg

Some folks will argue for mounting it in an enclosure, but I've found the trunk makes a pretty good one all by itself.

Doug

.

Blackmel 08-09-2013 03:16 PM

Quote:

Originally Posted by plano-doug (Post 834649)
That's all I did in my SS. I am very pleased with the Bose system other than its lack of low end. (It may be lacking some on the high end, too, but my ears are way too old to notice that anymore!) Having the extra low end makes it very satisfying. I wasn't going for bump - just more oomph.

I moved the factory amp from the rear deck and mounted a 10" sub there with a 150Wrms amp driving it. (150Wrms is something like 500 marketing BS watts...) The factory amp was relocated alongside the sub amp, in the trunk below the package tray. No wire splicing or longer cables were needed to move the factory amp.

The sub looks nearly identical to this:
http://www.doug79.com/stereo-cory/rings-p.jpg

Some folks will argue for mounting it in an enclosure, but I've found the trunk makes a pretty good one all by itself.

Doug

.

Great job on the install. Looks factory. I have to agree, there isn't much low on the factory speakers. In my Grand prix that had the bose there was plenty of bass in those. I guess Bose is going cheap now. Already the passenger side tweeter is making a strange noise. Almost like the cone is damaged. Its not that bad though.

TTW07 08-10-2013 06:56 PM

I installed a radio in my friend's 06 Grand Prix a while back, so I'm no stranger to multiple harnesses, but if I'm going to have to run all new wires then I suppose I'll keep the factory speakers. Will I still have better sound by just changing out the head unit? I never considered using the trunk as a box, I'll have to look into that. I ran a 2000 wrms system in my Blazer, so it would definitely be something different for me if I decide to go more for sound quality this time around.

jtrosky 08-10-2013 07:12 PM

I think that you'll definitely have better sound just by replacing the head unit. I recently installed an OttoNavi DVD & Navigation head unit, which is only 22x4W RMS (45x4W peak) and I found that it produces much better sound, especially at higher volumes. I recently read somewhere that stock GM head units actually reduce the bass at higher volumes and now that I've replaced the head unit, I would definitely agree - much better bass at high volumes now. This is with factory speakers also (2012 Impala LT) - pretty impressed with how the crappy factory speakers sound, to be honest.

Granted it's not a "boomin' system", but it gets plenty loud for "normal" listening without any breakup. I'm very impressed for such a low wattage head unit...

TTW07 08-11-2013 02:27 AM

Quote:

Originally Posted by Blackmel (Post 834513)
You can use pretty much any radio you want but u will need probably several harnesses. You don't need any harnesses for the speakers but the shop (if u have it done there) may run new wires.

Its always worth it to replace anything factory if you have a love and passion for music but its not worth it if you plan on selling the car soon or you don't particularly care for sound quality. If u think u can live with the factory system (save for the radio) then it may not be a good idea to replace them. Like I said it can get very expensive. Hope this helps. Feel free to ask me anything else.

I enjoy installing radios and speakers and the like, but replacing all the wires sounds like PITA. I'm not on any specific budget. I'll just upgrade as I save so I can get good quality stuff.

Quote:

Originally Posted by jtrosky (Post 836826)
I think that you'll definitely have better sound just by replacing the head unit. I recently installed an OttoNavi DVD & Navigation head unit, which is only 22x4W RMS (45x4W peak) and I found that it produces much better sound, especially at higher volumes. I recently read somewhere that stock GM head units actually reduce the bass at higher volumes and now that I've replaced the head unit, I would definitely agree - much better bass at high volumes now. This is with factory speakers also (2012 Impala LT) - pretty impressed with how the crappy factory speakers sound, to be honest.

Granted it's not a "boomin' system", but it gets plenty loud for "normal" listening without any breakup. I'm very impressed for such a low wattage head unit...

In that case a head unit will definitely be the first thing I get, I just need to do some shopping around to find the one that I want.

TTW07 08-11-2013 01:22 PM

After a bit more thought, I'm thinking that a head unit won't improve sound quality because all the speakers go through the factory amp. Am I wrong about this?

Either way, I'm looking ast these 2 head units.

Kenwood DPX500BT vs JVC KW-R900BT

I like the way the Kenwood looks more than the JVC, it has 22wrms vs 20 wrms, and also has the microphone built in. However, the JVC is CEA-Compliant, has 5v pre-outs instead of 2.5v, 5 EQ bands vs 3, and an extra USB port.

jtrosky 08-11-2013 01:34 PM

Yeah, sorry - when I was talking about improved sound quality with the head-unit replacement, I was talking about a non-Bose system (there is no amp - just the head unit). I guess that I should have paid more attention to the thread title! Duh...

With a Bose system and amp, I really have no idea if the head unit replacement would improve the sound quality or not. Does it get "double-amp'd" with Bose - using both an amp in the head unit as well as the amp in the trunk? Or does the head-unit amp power the front speakers and the trunk amp power the rear speakers?

Blackmel 08-13-2013 06:48 AM

It should improve. When I had my grand prix, I replaced just the radio and kept the factory bose speakers and amp. The sound quality was VERY noticeable. I had that setup for over a year before I decided to replace everything but you should see (er, hear) vast improvements in sound quality in your imp if u replace just the radio. Kenwood and JVC both make good radios so I can't say which one will give u better quality sound though.


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