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 SUV, 3-row
These are researched envelopes, not a guarantee. Measure your own vehicle — the numbers here tell you what to expect, not what you have.
| Location | factory cargo cutout behind 3rd row |
|---|---|
| Outer bounding box | ~6" depth clearance before touching interior plastic trim — a '12 slim' JL Audio box fits perfectly into the factory cutout |
| Known obstructions | Cutout is purpose-shaped for a slim/shallow driver, not a standard-depth one |
| Usable volume estimate | 1 ft³ |
Suggested configurations for this vehicle, not prescriptions. Run the numbers in the Box Builder before you buy anything.
| Subwoofers | 1x10" slim/shallow-mount |
|---|---|
| Box type | sealed |
| Location | factory cargo cutout |
| Subwoofers | 1x12" slim (real example: JL Audio 12 slim) |
|---|---|
| Box type | sealed |
| Location | factory cargo cutout, ~6" depth clearance |
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" (left/right specific per forum sourcing) |
|---|---|
| Known obstructions | None specifically documented |
| Adapter bracket needed | unconfirmed |
| Tweeter | Real, confirmed a genuine OEM 'ELS Studio Tweeter' part exists for this generation, but the exact physical mount point (dash vs. A-pillar) was not independently confirmed. our TLX entry (same ELS Studio audio brand, similar era) confirms an A-PILLAR-mounted 1" tweeter — plausible the MDX follows the same convention, but not confirmed specific to this vehicle. |
| Factory speaker size | 6.5" (same as front) |
|---|---|
| Known obstructions | None specifically documented |
| Adapter bracket needed | unconfirmed |
| Tweeter | n/a — no rear tweeter confirmed |
| Factory amp / premium audio | ELS Studio (Acura's own independent audio brand) available on equipped trims |
|---|---|
| Adding subs without a head-unit swap | Confirmed straightforward — the factory cargo cutout avoids the head unit entirely |
| Head unit | No replacement needed |
Real cargo volume by row: 71.4 ft3 (behind 1st row), 39.1 ft3 (behind 2nd row), 16.3 ft3 (behind 3rd row/trunk), up to 95.0 ft3 with all rows folded. Real specific find: a '12 slim' JL Audio box fits perfectly into the factory cargo cutout — real confirmation of a purpose-fit factory-shaped cavity, similar in spirit to other factory-cutout finds. Real clearance note: approximately 6" of depth available before touching the interior plastic trim.
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.