fullymatted.
Back to search
Rennlist

Behind Rear Seat Subwoofer

Add to repair workspace
Open repair workspace
Original source
15 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHBehind Rear Seat Subwoofer

Leading reported evidence

Replace oem bose sub

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

I replaced the OEM Bose sub with a custom 10 inch box made from MDF.

Behind Rear Seat Subwoofer
Read full discussion summary

Leading evidence: 'Replace oem bose sub' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace oem bose sub' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

1 matching discussions · 15 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Use since i only drove the car

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

They were barely used since I only drove the car on weekends with nice weather back in Georgia.

Behind Rear Seat Subwoofer

Use 8" sub

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

I'm going to be building a sub enclosure for that location in the upcoming weeks using an 8" sub.

Behind Rear Seat Subwoofer

Use ported

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

I use ported and for an 8" sub you should look at Sundown Audio.

Behind Rear Seat Subwoofer
Frequently discussed actions (4)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Replace oem bose sub

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

I replaced the OEM Bose sub with a custom 10 inch box made from MDF.

Behind Rear Seat Subwoofer

Use 8" sub

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

I'm going to be building a sub enclosure for that location in the upcoming weeks using an 8" sub.

Behind Rear Seat Subwoofer

Use ported

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

I use ported and for an 8" sub you should look at Sundown Audio.

Behind Rear Seat Subwoofer

Use since i only drove the car

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

They were barely used since I only drove the car on weekends with nice weather back in Georgia.

Behind Rear Seat Subwoofer
Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

15 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Rennlist: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261027T084359Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I did some searching and can't find a thread with what I'm looking for. What I'm hoping for is some experiences installing a single sub behind the left rear seat. I use my 911 like a 3 seater, don't want a second sub behind my son. Just want one sub, preferably 8" or larger behind the driver's side rear seat. Any feedback is greatly appreciated. Thanks in advance.

POST 2Original post

I always just build my own, many online sites to work out the enclosure size depending on a sealed or ported box and specs of the speaker you choose. I use ported and for an 8" sub you should look at Sundown Audio. Their 8" outperform most other 10" and 12". I have Sundowns in three of my cars.

POST 3Original post

I have one behind each seat. I purchased them from Car Audio Innovations (C-A-I). They come with 8" Kenwood drivers. They sound great! You lose a tiny bit of leg room , maybe 1.5 - 2". I may be willing to part with my driver side one as I only bought it after having sat in the passenger seat and got a back massage. I figured I'd get one for the drivers side to feel the same massage. The car sounds just a good with 1 sub IMO. Edit: I just re-read your post. You're looking for something behind the rear seat. My bad.

POST 4Original post

I'm going to be building a sub enclosure for that location in the upcoming weeks using an 8" sub. Watch my post titled "upcoming stereo upgrades".

POST 5 / ORIGINAL POSTEROriginal post

Quotes source posts: 14153214, 14152714, 14153253

Thanks. I'd still like a picture. Not sure what you're describing. 1.5-2" of legroom in the rear, or front? If you have something that will go in the back seat behind the driver, I could be interested. Need to see it Thanks for the tip on Sundown. I don't have the skills to build my own but may end up having someone else do it. Awesome, will do. Thanks.

POST 6Original post

When it clears up weather wise, I'll get you some pics. You lose a little leg room up front. Unless the driver is under 5.5, there will be no legroom in the back seat, meaning the sub sits right below the rear seat cushion and touches the back of the front seat.

POST 7 / ORIGINAL POSTEROriginal post

Quotes source post: 14153324

It's a possibility. I don't mind losing the driver's side back seat. I do mind losing leg room though. I'll play with the seat and see if I will miss them.

POST 8Original post

Quotes source post: 14154625

Again, another reason to consider making your own box. The box can be in any configuration (so you can design it to fit behind seat without loosing leg room by simply changing the height and minimizing depth) as long as you have the volume within box for the speaker of your choice. Not nearly as difficult as it seams.

POST 9Original post

I replaced the OEM Bose sub with a custom 10 inch box made from MDF. It fits exactly where the BOSE would fit. I've got that for sale if anyone is interested in it and another 10 inch enclosure that goes in the passenger side footwell.

POST 10 / ORIGINAL POSTEROriginal post

Quotes source post: 14159450

I'm new to 911's, been in other sports cars all my life, and I don't have the Bose system. I'd love to know exactly what it looks like, and what it looks like installed. Very interested.

POST 11Original post

Let me send you a link to my Ebay ad for both of those enclosures. This fits over the rear deck of a 996 coupe only (not convertibles). If you have a convertible then this may help but it will fit all kinds of 996 (coupes, convertible) This came out of my 2002 911 Turbo which I no longer have. Both enclosures and including subwoofers were brand new. They were barely used since I only drove the car on weekends with nice weather back in Georgia. (I don't live there anymore) which was a total of less than 6 months out of the year since I wasn't home much.

POST 12 / ORIGINAL POSTEROriginal post

Quotes source post: 14159499

That's not what I'm looking for. I need to preserve at least the right rear seat for my son.

POST 13Original post

Quotes source post: 14153324

Here are the pics installed and other angles.

POST 14Original post

I installed kenwood subwoofer behind passenger seat and it give me all the base I need and it fit good. Amazon Amazon

This is a source reference. Confirm exact model applicability in the original material.