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. Factory subwoofer, per Acura's 2017 MDX press kit: "A 20-cm subwoofer is mounted in a tuned 19-liter enclosure in the right sidewall of the cargo area" (7.87 in and 0.67 ft3 by conversion), on the 8-speaker base system and the 12-speaker ELS system alike. Whether the owner-reported factory cutout above is this enclosure was not confirmed; years other than 2017 were not stated. |
| 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) — Acura's own figure (2017 press kit): "Each front and rear door has a 17-cm full-range speaker" (17 cm, 6.69 in by conversion). A sizing-label difference from the owner-sourced 6.5", not necessarily a conflict. Acura gave no door size for 2014-2016 in the pages read. |
|---|---|
| Known obstructions | None specifically documented |
| Adapter bracket needed | unconfirmed |
| Tweeter | Near the A-pillars: Acura's 2017 MDX press kit says "Separate 4-cm tweeters are positioned near the A-pillars" (4 cm, 1.57 in by conversion), on the 8-speaker base system and the 12-speaker ELS system alike. Acura gave no tweeter position or size for 2014-2016 in the pages read. An OEM "ELS Studio Tweeter" part also exists for this generation. |
| Midrange | n/a in the doors — the dash-centre speaker is a separate location: Acura's 2017 press kit puts "an 8-cm speaker centered on the top of the instrument panel"; owner sources say 3.5" |
| 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. Acura's own figures (2014 press kit): base 8-speaker, 432-watt Acura audio system; Technology Package 10-speaker, 501-watt Acura/ELS Studio; Technology plus Entertainment 11-speaker, 529-watt; Advance plus Entertainment 12-speaker, 546-watt. The 2019 and 2020 spec pages list the same 8 / 10 / 11 / 12 speaker counts. |
|---|---|
| Adding subs without a head-unit swap | Confirmed straightforward — the factory cargo cutout avoids the head unit entirely |
| Head unit | No replacement needed |
Acura's published cargo volume (SAE J1100, cu ft) behind the 3rd / 2nd / 1st row: 14.8 / 38.4 / 68.4 (2015), 15.0 / 38.4 / 68.4 (2017 and 2019), 14.8 / 36.8 / 67.9 (2020). With floor space between the seats and the front seats moved forward, Acura's larger figures are 15.8 / 45.1 (43.4 in 2017 and 2019) / 90.9; the 2014 page prints only those. Acura's 2016 and 2018 pages were not read. A '12 slim' JL Audio box fits perfectly into the factory cargo cutout — a purpose-fit factory-shaped cavity. 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.