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
These are researched envelopes, not a guarantee. Measure your own vehicle — the numbers here tell you what to expect, not what you have.
| Location | spare tire well, or driver's-side rear panel cavity |
|---|---|
| Outer bounding box | No independently measured raw cavity envelope found — the real stack-fabbed build's own design goal (maximize airspace within the spare-tire-well footprint) is the best available reference. |
| Known obstructions | None specifically documented beyond standard spare-tire-well use. |
Suggested configurations for this vehicle, not prescriptions. Run the numbers in the Box Builder before you buy anything.
| Subwoofers | 1x8" or 1x10" powered, tapping factory Meridian subwoofer wiring |
|---|---|
| Box type | n/a — powered unit, factory-tap wiring |
| Location | rear-left corner of the trunk, spare tire well area, where factory sub wiring is confirmed to be routed |
| Subwoofers | 1x10" sealed, custom stack-fabbed (real example: Focal Flax 10" + Helix amp package) or a named product (Sounds Good Stereo stealth enclosure) |
|---|---|
| Box type | sealed, custom or named commercial stealth product |
| Location | spare tire well or driver's-side rear panel — both real, documented, zero-cargo-loss locations |
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 | not independently confirmed by exact size — Meridian tiers differ substantially in speaker count/wattage (see audio_integration), and per-driver sizes were not resolved to specific dimensions across those tiers. Real, confirmed detail: a named OEM part exists for a 'small door speaker Meridian mid-range tweeter' — the front door carries its own small mid-range/tweeter unit in addition to whatever handles bass, not a single coaxial driver. |
|---|---|
| Known obstructions | None specifically documented |
| Adapter bracket needed | unconfirmed |
| Midrange | Small door-mounted mid-range/tweeter unit confirmed via a named OEM replacement part ('small door speaker Meridian mid-range tweeter') — exact dimension not confirmed. |
| Factory speaker size | not independently confirmed by exact size |
|---|---|
| Known obstructions | None specifically documented |
| Adapter bracket needed | unconfirmed |
| Factory amp / premium audio | Meridian is the confirmed factory-premium-audio partner across the whole Land Rover/Range Rover lineup (not just this model), with real, specific, tiered systems — for this generation (L494) and its L405 full-size Range Rover sibling: a Signature system at 1,700W with 23 speakers, plus a documented retrofit path to a 19-speaker/825W 'Meridian Surround' system on a 2017 L494 specifically. Standard/premium Meridian tiers elsewhere in the Range Rover lineup run 380W and 825W respectively — treat the exact tier as a real, meaningful trim variable, not a single fixed spec. |
|---|---|
| Adding subs without a head-unit swap | Confirmed via real forum discussion specifically about adding an aftermarket sub/amp to the factory Meridian 850W system, and a separate thread on where to tap the factory sub output signal for a new enclosure — both real, documented, Land-Rover-specific tap approaches, not generic advice. |
| Head unit | No replacement needed |
Real, high-end, fully documented build (DIYMobileAudio.com, 2020 model): a Baltic birch enclosure, part 'stack-fabbed' to maximize airspace, built specifically to fit the spare tire well, wrapped in OEM-matching trunk liner carpet, over 50 individual wires concealed entirely under the OEM carpet — the finished result took up NO previously-usable cargo space and the trunk remained fully functional with nothing visibly out of place. A separate, real NAMED COMMERCIAL PRODUCT confirms an alternative hidden location: Sounds Good Stereo sells a custom stealth subwoofer enclosure specifically for 2014-2020 Range Rover Sport that fits behind the driver's-side rear panel in the rear compartment — genuinely hidden, zero cargo-space sacrifice.
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.