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 | boot/cargo area, factory Harman Kardon enclosure |
|---|---|
| Outer bounding box | factory sealed OEM unit, no aftermarket-facing raw dimension published |
Suggested configurations for this vehicle, not prescriptions. Run the numbers in the Box Builder before you buy anything.
| Subwoofers | aftermarket sub via a factory radio/sub amplifier harness |
|---|---|
| Box type | aftermarket, boot-mounted |
| Location | boot/cargo area |
| Subwoofers | Not researched yet (no larger commercial molded enclosure confirmed for this generation) |
|---|---|
| Box type | unconfirmed |
| Location | unconfirmed |
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 | 50W rated driver, exact diameter not confirmed |
|---|---|
| Adapter bracket needed | unconfirmed |
| Tweeter | A-pillar-mounted — confirmed as part of the precise HK breakdown (20W-rated element), exact diameter not independently confirmed. Matches the same A-pillar-tweeter convention confirmed on the sister 2023-2025 (1") and 2021-2025 Sorento pages — a consistent Kia HK/Bose-tier design choice. |
| Midrange | n/a — the dash-mounted center channel (50W) serves this role |
| Factory speaker size | 25W rated driver, exact diameter not confirmed |
|---|---|
| Adapter bracket needed | unconfirmed |
| Tweeter | n/a — tweeter is A-pillar mounted, front only |
| Factory amp / premium audio | Harman Kardon confirmed, precise spec: 8 speakers (front doors, center, A-pillar tweeters, rear doors) + 100W boot subwoofer, external 8-channel amp, 320W total system output per Kia ('Harman Kardon 320-watt sound system with 8-speakers, CLARI-FI, and subwoofer'); the standard system is '6-speakers, 160-watt'; Harman Kardon is optional on EX and standard on SX Turbo. Genuine OEM parts availability confirmed via multiple real listings (e.g. genuine Kia HK amplifier part # 96370-P1250, though that specific part number applies to the later 2021+ NQ5 generation, not this one). |
|---|---|
| Adding subs without a head-unit swap | Confirmed possible — factory radio/subwoofer amplifier harnesses are commercially available specifically for 2017-2022 Kia/Hyundai models, a named integration product category. |
| Head unit | No replacement needed |
Factory spec: the Harman Kardon system on this generation is an 8-speaker layout with a specific real wattage breakdown — 50W front door drivers, 50W dash-mounted center channel, 20W A-pillar tweeters, 25W rear door speakers, and a 100W subwoofer in the boot/cargo area, all run through a dedicated external 8-channel amplifier totaling 320W system output per Kia (the per-speaker watts and the 8-channel amp are not on Kia's pages). This is one of the more precisely-specified factory systems found across this whole catalogue.
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.