So after hours of looking on both google and forums and the back of my mo I've come to a conclusion. I'm completely confused. My goal is to splice into the read sub/amp setup of my bose system and add an AM sub to it. I opened up my bose sub in the back but it's just the speaker, no amp. There's 4 wires going into the box(black, black/pink stripe, orange, white) I don't think I can tap into these because they are after amp and I can't find the amp anywhere. Any possible location or ideas as how to hook this up?
Hammerofthor
Someone else can speak from experience, but you need to make sure your assumption about where to connect is valid. I'd say you need a line out feed and will need to connect it to your own amp and sub.
I guess I was just assuming(which I should know never to do) because I would guess you don't want to run the signals from the amp, through another amp, and then to an AM sub. I could be wrong. As for the remote line I was hoping to tap into the one running into the amp for the sub. If I could find it
The answer depends on how much you have learned about the Bose system in your particular car. They do REALLY weird stuff with their signals, which makes it as difficult as possible to alter their systems. They're not designed like any common stereo.
Example: in my 1990 Audi 200 the head output some weird resistance like 1.8 ohms and there was an EQ board mounted in each speaker enclosure. If you wanted to modify the system, you pretty much needed to remove the whole thing and replace everything. Interfaces have improved since then (Crutchfield was a pioneer in that area) and it's somewhat more possible.
But you are right - if you can possibly avoid it, you don't want to ever take an amplified signal, process it and amplify it again. Noise rises quickly as you do this and really nasty distortion often occurs. So you definitely want to find a pre-amp feed.
You probably get the factory service manual info and trace the signal path.
Example: in my 1990 Audi 200 the head output some weird resistance like 1.8 ohms and there was an EQ board mounted in each speaker enclosure. If you wanted to modify the system, you pretty much needed to remove the whole thing and replace everything. Interfaces have improved since then (Crutchfield was a pioneer in that area) and it's somewhat more possible.
But you are right - if you can possibly avoid it, you don't want to ever take an amplified signal, process it and amplify it again. Noise rises quickly as you do this and really nasty distortion often occurs. So you definitely want to find a pre-amp feed.
You probably get the factory service manual info and trace the signal path.
You can use the cable connection that goes into the Bose sub woofer, however you will need a high level preamp line out converter connector that can handle at least 50w rms which would allow you to connect an aftermarket amp using that connection. I would personally use the low level connection that goes between the head unit and the Bose amp, so will get a clean un-equalized signal to use. The sub signal leaving the amp have been modified by the Bose amp and is amplified, so it will not be the cleanest signal available, but it is the easier to use. A great line converter is located here
http://www.sonicelectronix.com/item_46220_NVX-XPLOC2.html
http://www.sonicelectronix.com/item_46220_NVX-XPLOC2.html
My bose amp is under the rear seats accessible via the cargo area & in the middle under the black plastic.
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