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 Crossover
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, standalone |
|---|---|
| Outer bounding box | 21.5"L x 13.75"H x 7.75"/4.375"W (single-12" product footprint used as proxy) |
| Known obstructions | None specifically documented |
| Usable volume estimate | 1.2 ft³ |
Suggested configurations for this vehicle, not prescriptions. Run the numbers in the Box Builder before you buy anything.
| Subwoofers | 1x10" sealed |
|---|---|
| Box type | sealed |
| Location | cargo area |
| Subwoofers | 1x12" Solo-Baric L7T, 600W RMS |
|---|---|
| Box type | sealed |
| Location | cargo area |
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"-compatible (real aftermarket upgrades used: Kicker 47KSC6704) — varies between standard and Harman Kardon-equipped systems |
|---|---|
| Known obstructions | Standard vs. Harman Kardon systems genuinely differ — verify trim before recommending |
| Adapter bracket needed | unconfirmed |
| Tweeter | A-pillar-mounted — real, confirmed 1" tweeter, accessible for aftermarket swaps with little modification. Real, notable trim variance: some 2023 trims (e.g. X-Line) reportedly lack a front dash/A-pillar tweeter at all — verify per-trim rather than assuming universal. |
| Factory speaker size | 6.5"-compatible (real aftermarket upgrade used: Rockford Fosgate R165X3) |
|---|---|
| Known obstructions | None specifically documented |
| Adapter bracket needed | unconfirmed |
| Tweeter | n/a — tweeter is A-pillar mounted, front only |
| Factory amp / premium audio | Real, specific, well-gated. Harman Kardon confirmed on: non-hybrid SX, SX Prestige, X-Pro, and X-Pro Prestige trims; and on the Hybrid SX Prestige specifically (the only Hybrid trim that gets it). 400W system, a real spec bump (+85W) from the prior generation's HK system. Base/EX trims do not get HK on any powertrain. |
|---|---|
| Adding subs without a head-unit swap | Confirmed straightforward — cargo-area builds don't touch the head unit |
| Head unit | No replacement needed |
Real specific product: single 12" Solo-Baric L7T, 600W RMS, 2-ohm, 21.5"L x 13.75"H x 7.75"/4.375"W. GENUINELY INTERESTING DEMAND SIGNAL, worth noting: Smartliner (a floor-mat maker, not an audio company) sells custom-fit cargo liners specifically designed for '2023-2025 Kia Sportage WITH SUBWOOFER IN CARGO AREA' — a real accessory-market confirmation that this install is common enough for an unrelated product category to design around it.
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.