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, EL/Max (extended length)
These are researched envelopes, not a guarantee. Measure your own vehicle — the numbers here tell you what to expect, not what you have.
| Location | cargo area (retailer-measured, promoted from existing notes) |
|---|---|
| Outer bounding box | 51"W x 15"H x 24"/30"D (below side ledges) Vehicle-specific enclosure catalogues; published box footprints are lower bounds on the cavity, not the cavity: NET Audio '2007-2014 Ford Expedition Sub Box Sealed Downfire': 49 x 17 x 25 in (as printed; axes not labelled), 6.48 ft3, behind back seat (third row) [only 2007-2014]. Vehicle-specific enclosure catalogues; published box footprints are lower bounds on the cavity, not the cavity: Ground Shaker 'BLACK 10" SINGLE SEALED SUB BOX, FITS 96-24 FORD EXPEDITION (w/3rd row seat)': Height 18", Length 25 1/2", Top Depth 10 1/4", Bottom Depth 13 1/2" (labelled by Ground Shaker), 1.53 FT3, behind the 3rd row seat; Ground Shaker 'BLACK 10" DUAL SEALED SUB BOX, FITS 96-24 FORD EXPEDITION (w/3rd row seat)': Height 18", Length 41 1/2", Top Depth 10 1/4", Bottom Depth 13 1/2" (labelled by Ground Shaker), 2.58 FT3 (2 chambers), behind the 3rd row seat. |
| Known obstructions | Factory subwoofer mounting bosses behind the quarter panels are fixed anchor points that determine the aftermarket-replacement location, distinct from the larger open cargo envelope |
| Usable volume estimate | 8 ft³ |
Suggested configurations for this vehicle, not prescriptions. Run the numbers in the Box Builder before you buy anything.
| Subwoofers | 1x10" sealed (direct-fit Stealthbox, factory location) |
|---|---|
| Box type | sealed |
| Location | factory subwoofer location, zero cargo loss |
| Subwoofers | 1x15" or custom multi-sub |
|---|---|
| Box type | sealed or ported |
| Location | behind 3rd row, custom large build |
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 | 6x8" or 5x7", with 1.570" tweeters also in the door panels |
|---|---|
| Known obstructions | None specifically documented |
| Adapter bracket needed | unconfirmed |
| Tweeter | Front door panel. IMPORTANT CROSS-REFERENCE, confirmed earlier this same completeness pass: this exact figure was originally (mis)attributed to the shared-platform Lincoln Navigator's own page, sourced from a Crutchfield guide covering both vehicles together — direct research corrected the Navigator's real tweeter (a THX-branded 2.194" unit in the rear pillar, genuinely different). This Expedition page is the CORRECT home for the 1.570" figure — it belongs here, not to the Navigator. |
| Factory speaker size | 6x8" or 5x7" (same platform family as front) |
|---|---|
| Known obstructions | None specifically documented |
| Adapter bracket needed | unconfirmed |
| Tweeter | n/a — tweeter not independently confirmed as doubled to rear doors |
| Factory amp / premium audio | Ford's brochures for 2012, 2016 and 2017 (other years not confirmed). 2012: XLT 'Premium Sound System with single-CD player, MP3 capability and 6 speakers'; XLT Premium (Equipment Group 201A) and above 'Premium Sound System with single-CD player, MP3 capability and 7 speakers (including a subwoofer) with 340 watts'. 2016: XLT standard 6 speakers; 'Audio System from Sony with subwoofer and HD Radio Technology' standard on Limited and in the XLT Equipment Group 202A. 2017: 'Audio System from Sony with 12 speakers, subwoofer and HD Radio Technology' standard on Limited, King Ranch and Platinum. Ford puts Sony on the Limited and above, and on the XLT only with the 202A package. |
|---|---|
| Adding subs without a head-unit swap | Straightforward — factory sub location is a known, bolt-in-friendly anchor point |
| Head unit | No replacement needed |
Measured cargo space: 51"W x 15"H x 24"/30"D (below side ledges). Factory subwoofers mount behind the quarter panels with fixed mounting bosses that determine the aftermarket-replacement location — JL Audio Stealthbox is a confirmed direct fit here. Larger custom option: behind-3rd-row box, 48"w x 17.5"tall, 9.75" mounting depth, hole cutouts for 15" square or 13.75" round subs.
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.