Wiring a Sub Amp Before the Bose Amp
02-19-2004, 04:31 PM
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Wiring a Sub Amp Before the Bose Amp
The solution is to tap into the outputs at the headunit BEFORE they get to the Bose amp. Remove the factory HU, and remove the large Black/White harness from the back of the head unit. Turn the harness so the wire side of the harness is facing you. The rear speaker outputs from the HU are the (4) wires in the cluster in the white section of the harness. There should be (from right to left) a brown wire, another brown wire, a blue wire and a black wire. The brown wire on the right is the (L+), the next brown wire to the left is the (L-) wire, the blue wire is the (R+) and the black wire is the (R-). Splice into these and then connect the converter respecivly. Now, the yellow wire next to the orange one at the end of the black harness will work as the amp turn on lead if you splice into it. Make all the connections to the amp and sub. Remember to use the correct sized wire and fuse.
02-22-2004, 04:37 PM
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Well, I tried this procedure...and it won't work on a 2000 and newer Bonneville with the BOSE system. At least on my car, the head unit uses a single ribbon cable with embedded circuits for all connections, so the wire colors as described won't work. Also, I don't see any way to splice into the integrated lines in the ribbon.
03-02-2004, 11:07 PM
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That'* what I ended up doing. it was an easy job after I finally found the wiring schematics to dteremine the right colors. I'm going to post a "step-by step" with the colors when i get some xtra time.
Jim
Jim
03-03-2004, 12:43 AM
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How Does it sound? Did it make a big difference? Thinking about changing the wiring in my car I have it ran at my 6x9s and its sounds horrible. Try anyting to get beter sound from my speakers
03-03-2004, 10:29 AM
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It sounds 1000% better....well worth the time and little bit of $.
I would suggest that b4 you go the sub route, if you haven't done so already you should replace your BOSE 6x9 deck speakers with something better (and there are lots of better 6x9'* out there). You'll really be surprised at what a difference that simple change will make. I follwed that advice after reading it on this board...and everyone was right.) I ended up putting in a set of Pioneer 6980 4-ways that I found online for about $60.
Jim
I would suggest that b4 you go the sub route, if you haven't done so already you should replace your BOSE 6x9 deck speakers with something better (and there are lots of better 6x9'* out there). You'll really be surprised at what a difference that simple change will make. I follwed that advice after reading it on this board...and everyone was right.) I ended up putting in a set of Pioneer 6980 4-ways that I found online for about $60.
Jim
03-03-2004, 11:33 AM
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I just spent my Sunday changing the 6x9s and it was definitely an improvement. Soon as I get some free time I'm going to get in the truck and try to figure out the wiring by the amp to run my subs off of definitely looking forward to the improved sound.
03-10-2004, 09:03 PM
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Re: Wiring a Sub Amp Before the Bose Amp
Originally Posted by JHE757
The solution is to tap into the outputs at the headunit BEFORE they get to the Bose amp. Remove the factory HU, and remove the large Black/White harness from the back of the head unit. Turn the harness so the wire side of the harness is facing you. The rear speaker outputs from the HU are the (4) wires in the cluster in the white section of the harness. There should be (from right to left) a brown wire, another brown wire, a blue wire and a black wire. The brown wire on the right is the (L+), the next brown wire to the left is the (L-) wire, the blue wire is the (R+) and the black wire is the (R-). Splice into these and then connect the converter respecivly. Now, the yellow wire next to the orange one at the end of the black harness will work as the amp turn on lead if you splice into it. Make all the connections to the amp and sub. Remember to use the correct sized wire and fuse.
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