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I've searched the archives but still haven't found any pics of speaker adapters for the 4" Bose...

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Old 01-08-2006, 11:19 AM
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Default I've searched the archives but still haven't found any pics of speaker adapters for the 4" Bose...

Anyone done a conversion to 5.25" and lived to tell about it? I have a C4 (though sadly not an S6...) and I'm getting ready to finally upgrade my stereo. I have Diamond Audio Hex components in the 5.25" size and just worry that they'll fit (both in depth and diameter.)
Any help and especially pics would be very helpful. Thanks!!
Old 01-08-2006, 11:32 AM
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just open it up and start working dude.
Old 01-08-2006, 11:36 AM
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Default Early B5 A4 guys might be able to give you some insights too.

<center><img src="http://www.mnaudi.com/events/images/14/Dsc00087.jpg"></center><p>There are some tech articles on Audiworld about stereo stuff on A4's.
Old 01-08-2006, 12:25 PM
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Default I did, pulled out the 4" Bose 3-pt speaker but the plastic in there is molded and limits...

the diameter. No way in hell I can see to fit a 5.25" speaker in there without serious cutting and ruining any hope of a stock appearance.
I just asked 'cuz I hear about people doing it but it's not looking likely.
Old 01-08-2006, 12:59 PM
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I made mine.
Old 01-08-2006, 01:52 PM
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Default How did you deal with the hard plastic moulded opening for the stock speaker? Seems...

like there's no room in there at all, I don't know, maybe they changed the speaker design on the late C4s but it looks tough. Any pics to share?
Old 01-08-2006, 02:20 PM
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Default I put 5.25 MB quarts in mine. Removed the plastic Bose boxes altogether...

Different speakers are going to need different customization and fabrication to fit into the door panels. No 5.25 speaker is just going to screw in. You are going to need to do some planning and fabricatrion. Good luck, and yes I did use the stock speaker grills for both the mids and tweeters.
Old 01-08-2006, 03:45 PM
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Gotcha, thanks. I'd like to go with same size Diamond components, hopefully it will work.
Old 01-08-2006, 05:15 PM
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Default I never took pics, but what I did what make a template using the stock speaker...

used the same srew holes for mounting and mounted the speaker in the middle. I used multi density fiberboard
Old 01-08-2006, 06:03 PM
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I assume you removed the plastic surround from the stock speaker, opening up room?


Quick Reply: I've searched the archives but still haven't found any pics of speaker adapters for the 4" Bose...



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