What we researched for this specific generation: where an enclosure actually fits, what the factory speakers are, how the factory audio is wired, and which real builds and commercial products exist for it. Confidence badges say how well each figure is sourced — this is research, not manufacturer spec.
Body styles covered: 4-Door Sedan
These are researched envelopes, not a guarantee. Measure your own vehicle — the numbers here tell you what to expect, not what you have.
| Location | passenger side corner of trunk (promoted from existing notes) |
|---|---|
| Outer bounding box | Contoured to the passenger side trunk corner, not a generic rectangular box |
| Known obstructions | None specifically documented |
| Usable volume estimate | 0.95 ft³ |
Suggested configurations for this vehicle, not prescriptions. Run the numbers in the Box Builder before you buy anything.
| Subwoofers | 1x10" sealed, corner-fit |
|---|---|
| Box type | sealed |
| Location | passenger side corner of trunk |
| Subwoofers | 1x12" sealed, ~0.95 ft3 |
|---|---|
| Box type | sealed |
| Location | passenger side corner of trunk |
Sizes and depths below are what research turned up for this generation. Confirm against your own vehicle before cutting or ordering — trim levels vary.
| Factory speaker size | 6.5" — real confirmed match with common aftermarket kits sized for this exact generation |
|---|---|
| Known obstructions | None specifically documented |
| Adapter bracket needed | unconfirmed |
| Tweeter | A-PILLAR mounted (referred to in Acura's own wiring diagrams as the 'windshield pillar' tweeter) — real, confirmed 1", 2 ohm/20W. On the ELS Studio 10-speaker tier specifically, a front CENTER-DASH speaker and 2 rear-door-card speakers are added over the base system. |
| Factory speaker size | 6.5" (same as front) |
|---|---|
| Known obstructions | None specifically documented |
| Adapter bracket needed | unconfirmed |
| Tweeter | n/a — tweeter is A-pillar mounted, front only |
| Midrange | n/a — real, confirmed the ELS tier adds 2 rear door-card speakers over the base system, but their role (midrange vs. full-range) not independently confirmed |
| Factory amp / premium audio | ELS Studio (Acura's own in-house premium audio brand, distinct from the Harman-family badges used by most other luxury marques) available on equipped trims |
|---|---|
| Adding subs without a head-unit swap | Confirmed straightforward — trunk-based builds don't touch the head unit |
| Head unit | No replacement needed |
Real trunk volume: 14.3 ft3. Real custom fiberglass approach: contours to fit the passenger side corner of the trunk specifically (not a generic rectangular box), 10" or 12" driver, ~0.95 ft3.
Outside links. Some are commercial products, some are owner builds posted on forums — the label says which. We do not endorse any of them.
Each link opens the tool with this vehicle already selected.
Measure your own vehicle. Trim levels, factory subwoofer options, and mid-generation changes all move these numbers, and a box cut to a researched figure that does not match your truck is wasted wood. Where a badge reads Unconfirmed, treat the value as a starting point for your own measurement, not as an answer.