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986 Forum - The Community for Porsche Boxster & Cayman Owners (http://986forum.com/forums/index.php)
-   Boxster General Discussions (http://986forum.com/forums/forumdisplay.php?f=5)
-   -   I added the 987 rear speaker with subwoofer to my 2000 Boxster S (http://986forum.com/forums/showthread.php?t=71480)

square-root 01-30-2020 10:40 AM
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 (Post 593740)
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 http://986forum.com/forums/uploads02...1556197372.jpg

Would be much appreciated.

Thx in advance.

Thomas

lskolnick 02-18-2020 11:16 PM
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 -

TRP 02-20-2020 02:00 PM
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?

square-root 02-20-2020 02:08 PM
Quote:
Originally Posted by lskolnick (Post 611962)
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 -
Cool, thanks!

How'd you wire it into your M490 amp? Or did you go directly from your head unit?

lskolnick 03-25-2020 09:29 AM
I went directly from head unit.

lskolnick 01-20-2021 08:56 AM
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.

Zordrack 03-07-2021 04:48 PM
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 ?

lskolnick 03-08-2021 07:53 AM
Subwoofer + and - in the wiring pinout is line level.

Zordrack 03-08-2021 04:05 PM
Awesome.

Thank you.

CBRacerX 03-31-2021 05:30 AM
If anyone has one of these for sale please let me know.

Radman 03-31-2021 06:00 AM
Quote:
Originally Posted by CBRacerX (Post 632751)
If anyone has one of these for sale please let me know.
Check ebay. On there fairly frequently.

Goldenzrule 04-01-2021 03:24 AM
Assuming this is hardwired, how do you remove it when you need to access the engine? The current speaker box just unplugs easily.

Stl-986 04-01-2021 04:49 AM
It just unplugs

Most_Wanted 04-01-2021 06:34 PM
I wonder if it plugs to the stock 986 speaker harness

Stl-986 04-01-2021 07:03 PM
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.

lskolnick 04-02-2021 08:11 PM
The 987 sub box includes a built-in amp for the sub. It connects and disconnects in the same spot as the 986 box.

pidj 03-27-2022 07:38 AM
Quote:
Originally Posted by lskolnick (Post 631627)
Subwoofer + and - in the wiring pinout is line level.
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?

husker boxster 03-28-2022 04:30 AM
Quote:
Originally Posted by lskolnick (Post 629441)
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.
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.

MHudson 03-28-2022 01:13 PM
Quote:
Originally Posted by husker boxster (Post 645535)
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.
What kind of synthetic pillow did you use?

husker boxster 03-28-2022 04:51 PM
Quote:
Originally Posted by MHudson (Post 645539)
What kind of synthetic pillow did you use?
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.


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