01-30-2020, 11:40 AM
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#21
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Registered User
Join Date: Sep 2017
Location: Location Location
Posts: 70
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Hi!
I'm going to embark on this myself, and I'd love to know how you ended up doing this.
Will it work with the stock M490 amp or did you have to do something different? What connectors and cables? etc.
Quote:
Originally Posted by tfeih
Hi,
Just read your post on addiing the Bose sub shelf to the system. I just purchased one my self and would like to hook it up to a aftermarket Clarion head unit in my 987 Boxster.
Would you be able to explain me the meaning of the wires ( colour codes ) which are connected to the subwofer build in AMP. Ihave
Would be much appreciated.
Thx in advance.
Thomas
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02-19-2020, 12:16 AM
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#22
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Registered User
Join Date: Nov 2016
Posts: 130
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1 - Amp power +
2 - Amp power -
3 - Subwoofer remote
4 - Subwoofer +
5 - Subwoofer -
8 - Rear Right -
9 - Rear Right +
10 - Rear Left +
11 - Rear Right -
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02-20-2020, 03:00 PM
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#23
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Registered User
Join Date: Nov 2019
Location: California
Posts: 148
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I did the same just last weekend. I wish I had seen the post above! I didn't realize how simple it would have been to wire up that existing amp. I chucked that 987 Bose amp and went with an aftermarket mono amp.
One question... based on the pin out above where does the amp/box pick up signal?
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02-20-2020, 03:08 PM
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#24
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Registered User
Join Date: Sep 2017
Location: Location Location
Posts: 70
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Quote:
Originally Posted by lskolnick
1 - Amp power +
2 - Amp power -
3 - Subwoofer remote
4 - Subwoofer +
5 - Subwoofer -
8 - Rear Right -
9 - Rear Right +
10 - Rear Left +
11 - Rear Right -
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Cool, thanks!
How'd you wire it into your M490 amp? Or did you go directly from your head unit?
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03-25-2020, 10:29 AM
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#25
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Registered User
Join Date: Nov 2016
Posts: 130
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I went directly from head unit.
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01-20-2021, 09:56 AM
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#26
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Registered User
Join Date: Nov 2016
Posts: 130
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Someone asked about the sound quality. I mean it's not a 12" sub, but you do get some nice bass out of it. I am definitely not yearning for more.
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03-07-2021, 05:48 PM
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#27
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Registered User
Join Date: Jan 2021
Location: New Orleans
Posts: 80
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Just ordered one on eBay.
Is there an idiots guide to wiring this up somewhere ?
Like initial questions I have is the built in amp powering both subs and the two full drivers and does it expect line or speaker level signal ?
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03-08-2021, 08:53 AM
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#28
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Registered User
Join Date: Nov 2016
Posts: 130
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Subwoofer + and - in the wiring pinout is line level.
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03-08-2021, 05:05 PM
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#29
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Registered User
Join Date: Jan 2021
Location: New Orleans
Posts: 80
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Awesome.
Thank you.
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03-31-2021, 06:30 AM
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#30
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Registered User
Join Date: Jul 2012
Location: New Hope, PA
Posts: 190
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If anyone has one of these for sale please let me know.
__________________
'01 986S
‘07 GT3
'80 911SC Weissach Edition (Sold)
‘11 958 S
https://dergarage.com
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03-31-2021, 07:00 AM
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#31
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Registered User
Join Date: Oct 2019
Location: Central Florida
Posts: 253
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Quote:
Originally Posted by CBRacerX
If anyone has one of these for sale please let me know.
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Check ebay. On there fairly frequently.
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04-01-2021, 04:24 AM
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#32
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Registered User
Join Date: Jul 2020
Location: Connecticut
Posts: 54
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Assuming this is hardwired, how do you remove it when you need to access the engine? The current speaker box just unplugs easily.
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04-01-2021, 05:49 AM
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#33
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Registered User
Join Date: May 2017
Posts: 1,182
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It just unplugs
__________________
2000 Boxster Tiptronic
2003 Boxster
2003 996 C2 Cab
2002 996 (SOLD)
1986 944 (gone but missed)
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04-01-2021, 07:34 PM
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#34
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ISSIMI
Join Date: Apr 2017
Location: Bay Area CA
Posts: 144
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I wonder if it plugs to the stock 986 speaker harness
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04-01-2021, 08:03 PM
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#35
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Registered User
Join Date: May 2017
Posts: 1,182
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it wont plug in, but you could splice it in. You wont really get any good sound out of it though since the output will be all freq. instead of just the low for a sub. Really needs to be run to an amp...factory or aftermarket....or you need to have a crossover between the radio & sub.
__________________
2000 Boxster Tiptronic
2003 Boxster
2003 996 C2 Cab
2002 996 (SOLD)
1986 944 (gone but missed)
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04-02-2021, 09:11 PM
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#36
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Registered User
Join Date: Nov 2016
Posts: 130
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The 987 sub box includes a built-in amp for the sub. It connects and disconnects in the same spot as the 986 box.
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03-27-2022, 08:38 AM
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#37
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Registered User
Join Date: Feb 2017
Location: Acton, ON
Posts: 257
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Quote:
Originally Posted by lskolnick
Subwoofer + and - in the wiring pinout is line level.
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It's strange because these aren't even wired sensibly: Sub + is a standalone wire but Sub - is attached with the Right Rear +
I'm trying to determine how these will plug into the back of a head unit? Or is that in a non-Bose car, you have to split the those two connected pairs into 4 separate wires?
__________________
-------------------------------
2001 Boxster S, Guards Red
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03-28-2022, 05:30 AM
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#38
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Registered User
Join Date: Sep 2006
Location: Omaha
Posts: 2,906
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Quote:
Originally Posted by lskolnick
Someone asked about the sound quality. I mean it's not a 12" sub, but you do get some nice bass out of it. I am definitely not yearning for more.
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There are various threads saying to stuff the sub with synthetic pillow stuffing for better sound. I did my Boxster sub and Cayman footwell sub. My ear isn't refined enough to know if it made a difference but it's a fun w/e project and something to do with an old pillow.
__________________
GPRPCA Chief Driving Instructor
2008 Boxster S Limited Edition #005
2008 Cayman S Sport - Signal Green
1989 928 S4 5 spd - black
1987 928 S4 - Granite Green Metallic (Felsengrun)
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03-28-2022, 02:13 PM
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#39
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Registered User
Join Date: Dec 2017
Posts: 9
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Quote:
Originally Posted by husker boxster
There are various threads saying to stuff the sub with synthetic pillow stuffing for better sound. I did my Boxster sub and Cayman footwell sub. My ear isn't refined enough to know if it made a difference but it's a fun w/e project and something to do with an old pillow.
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What kind of synthetic pillow did you use?
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03-28-2022, 05:51 PM
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#40
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Registered User
Join Date: Sep 2006
Location: Omaha
Posts: 2,906
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Quote:
Originally Posted by MHudson
What kind of synthetic pillow did you use?
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The kind that doesn't contain feathers. When opened, you can grab a handfull of the polyfill stuffing out of the pillow and stuff it into the cavities of the subwoofer.
__________________
GPRPCA Chief Driving Instructor
2008 Boxster S Limited Edition #005
2008 Cayman S Sport - Signal Green
1989 928 S4 5 spd - black
1987 928 S4 - Granite Green Metallic (Felsengrun)
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