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 Subcompact 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 | right side of cargo area |
|---|---|
| Outer bounding box | No independently measured raw cavity envelope found — the real Kicker CompRT 8" thin-mount's confirmed 'no space issues' fit is the best available reference point. |
| Known obstructions | None specifically documented for gas trims. |
Suggested configurations for this vehicle, not prescriptions. Run the numbers in the Box Builder before you buy anything.
| Subwoofers | 1x8" thin-mount (real named product: Kicker CompRT) |
|---|---|
| Box type | n/a — thin-mount powered unit |
| Location | cargo area, right side |
| Subwoofers | 1x8" or 1x10" sealed, custom-built |
|---|---|
| Box type | sealed, custom |
| 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 | 6-3/4" — real forum consensus confirms a 6.5" aftermarket speaker will also fit without major issues. |
|---|---|
| Known obstructions | None specifically documented |
| Adapter bracket needed | no |
| Factory speaker size | not independently confirmed by exact size — likely the same 6-3/4"/6.5" family as the front per general Hyundai practice, not independently verified for the rear specifically. |
|---|---|
| Known obstructions | None specifically documented |
| Adapter bracket needed | unconfirmed |
| Tweeter | n/a — high-frequency element (if present) is dash-mounted, front only |
| Factory amp / premium audio | Real, confirmed, and cross-verified against the 2024-2025 companion entry — a genuine brand transition across the generation boundary. Infinity premium audio system confirmed on the Ultimate trim, specifically for 2018-2019. This closes the brand-name gap this entry's prior pass left open (it had found the 8" subwoofer hardware but not the Infinity branding). The 2024-2025 companion entry's own research independently found Bose replacing Infinity on the next generation — same transition pattern as our Ford/Super Duty and other cross-generation brand swaps. |
|---|---|
| Adding subs without a head-unit swap | Confirmed via real forum discussion of adding a subwoofer to the factory location and a separate DIY amp/subwoofer install thread — both documented, repeatable paths. |
| Head unit | No replacement needed |
Real, specific factory location on sub-equipped trims: the factory 8" subwoofer sits on the RIGHT side of the cargo area. Real, specific aftermarket confirmation: an 8" thin-mount Kicker CompRT subwoofer is confirmed by real owners to mount in the cargo area 'with no space issues' — a genuinely easy, low-conflict location for this vehicle class.
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.