Bypass Bose Amp and Keep bose Woofer?

Hello... 

I recently replaced my head unit on my 2005 GMC yukon with a pioneer avic-n1....  I also added two amps, one for two jl audio 10w6's in the back of the car, and another for mbquarts on the doors.  The way it is wired, I bypassed the bose amplifier and I installed an external speaker to the pac-0s2 onstar interface so that I can still keep onstar functional.  

Now to my main question....  I really miss the feeling of having a woofer up front in the center console and was wondering if there is any way to keep the stock bose subwoofer running along with the rest of the upgraded system?  Would I need to buy a third amplifier to power this woofer?     THX

If anyone that is familiar with bose stock systems can give me some info I would really appreciate it....  

I am just not sure how to start going about this???

Thanks!

Two questions:

1.  did you use the CM1 (chime module)?

2.  did you use the factory speaker wiring or did you run new aftermarket wiring?

it would be a good idea to amplify the factory woofer. You could run it off of the factory deck but you would need to use a cross over to get only low frequencies to the factory sub. That subwoofer is a dual voice coil four ohm sub. Probably not get a whole lot of juice going to it if you use the speaker outputs of the h/u. I nice little amp would be the way to go.

Jazzy

Esmith69: 

1) I did not use a chime module but am forgetting to turn on off my headlights when I have them on during the day so now I am thinking of getting one...

2) I ran wires from the amp to behind the head unit, and there I tapped into the factory wiring that goes out to the speakers...

jstruckman:

I was actually thinking about doing that but am not too sure how to get to the wiring that goes into the sub... Behind the h/u there are wires coming out of the h/u for front and back speakers (to the amp I guess), and then in another part, they go out to the actual speakers (i am guessing from the bose amp -->these are the wires I tapped into with my amp).  But I cant find anything for the woofer. I am guessing that since the woofer is in the center console, these wires are going directly from the bose amp to the woofer, thus why I can't see them???   Any idea how to get to the bose amp in this car??

BTW....  Thanks for the help guys!

Any idea where to begin looking for the bose amp....   I am guessing it is in the center console but any suggestions on how best to get to it?   Thanks!

Jazzy...  I think I found it... 

 I took out the center console and found a silver colored aparatus that I am 99% sure is the amp.  It has ridges accross the top, kinda like the old fosgate punch amps but this one is silver colored.  The amp has two plugs going into it....  One plug seems like it contains the front and back door speakers as well as some other wires, and the other plug has the exact same color wires you mentioned in your previoius post for the woofer, as well as some other wires too... 

Can I just tap into those four wires that are going into the amp, and run them to my amp?      If so, how should I do it...  Join the two positives (green and blue/white) and join the two negatives (blue/black and GREEN/ black) and then run these to the positive of one channel and the negative of the other channel of the amp (bridge the amp)?   I have a kicker zr-120 that I can use to run this woofer, would this be ok or too much?  

Thanks!

If you have some extra cash to pour into this system you can buy a good 8" (double check the size of the woofer first) woofer and replace the stock one in the center cosole, and run midbass out of it.  Leave the super lows for your woofers in the back, but let that one play bass between the big woofers and the door speakers.  It'll sound nice!

-Drew

Jazzy.... 

Everything you said was exactly right....   I took the two positives coming from the woofer and put them into the positive from one channel, and I took the two negatives from the woofer and put them into the negative input of the other channel.  I turned up the gain a tiny, tiny bit and wala the speaker sounded great....  In fact, I was actually surprised at what I was getting out of that woofer just by switching it to a bigger amp....   I had the small kicker amp running my highs but I am going to leave it for that one woofer and get me another amp for the highs....  Any suggestions (mb quart ref 6.5 in front and 6.5 Discuss in back)????

Again, Thanks for the help Jazzy!  I like how having this woofer up front gives the car a more filling/complete sound...

Drew...  What do you mean about running my mid base from there, how would I go about doing it and can I just use the stock bose...  I am honestly surprised by it...  

well, that bose speaker may actually work well, I haven't heard it, so I didn't know.

You'll need another crossover (or an amp with one built in, or wire in capacators and coils to the woofer), and basically just play stuff in the say 70-250 Hz area or so.  Just in the area where your big subs don't play well, and below the range that your door speakers can play.  Since you have MB Quart refrence's up front, it may not do you much good.  The main idea is to just take the bass that is too low for a 6.5" speaker to reproduce well, and too high for a 12" or 15" sub to reproduce well.  You will basically have to play with it for a while to get it to sound like you like it.  Good luck if you try to do it.

-Drew