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 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 under the cargo floor |
|---|---|
| Outer bounding box | not independently measured — confirmed to exist and be used for this exact purpose, but no forum source gave exact usable dimensions after the foam-caddy modification |
| Known obstructions | Factory foam tool caddy (must be partially cut away), the ANC module wiring routes near the glove box (not physically in this cavity, but must be disconnected as part of the install per multiple owner reports) |
Suggested configurations for this vehicle, not prescriptions. Run the numbers in the Box Builder before you buy anything.
| Subwoofers | 1x powered spare-tire-well unit (real example: JBL Basspro Hub, 200W RMS) |
|---|---|
| Box type | n/a — powered unit, not a custom enclosure |
| Location | spare tire well, requires partial foam-caddy trim + ANC module disconnect during install |
| Subwoofers | 1x8" or 1x10" shallow sealed |
|---|---|
| Box type | sealed |
| Location | under rear seat — discussed but not dimension-confirmed; measure on-site |
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 driver size — LX trim runs a 4-speaker 160W system, Sport/EX+ run 180W with added tweeters |
|---|---|
| Known obstructions | None specifically documented |
| Adapter bracket needed | unconfirmed |
| Factory speaker size | not independently confirmed |
|---|---|
| Known obstructions | None specifically documented |
| Adapter bracket needed | unconfirmed |
| Tweeter | n/a — tweeter is A-pillar mounted, front only |
| Factory amp / premium audio | LX: 160W, 4-speaker base system. Sport: 180W, 4-speaker. EX and above: 180W with an added tweeter pair (6 speakers total). 2023+ EX-L: 8 speakers total (adds a second tweeter pair over EX). No US-market factory subwoofer trim confirmed for this generation — a UK/international-market source mentions an 'Advance Style' trim with a boot-mounted subwoofer, but that appears to be a non-US market trim name and was NOT relied on for this US-focused entry; flagged rather than assumed to apply here. |
|---|---|
| Adding subs without a head-unit swap | Confirmed via the JBL Basspro Hub install pattern — a powered sub in the spare tire well taps existing wiring without a head-unit swap. Exact tap point/part number not independently confirmed. |
| Head unit | No replacement needed |
Real, specific, repeatable owner-documented pattern: HR-V owners cut away part of the factory foam tool caddy inside the spare tire well to fit a powered subwoofer, then heat-gun-reseal the foam edges to prevent deterioration. Not a true zero-cut install (unlike the Rogue/Forester spare-tire-bin pattern on other vehicles covered here, which needs no foam modification at all) but genuinely minor and reversible — the spare tire cover lays flat again afterward. The JBL Basspro Hub (200W RMS powered sub) is confirmed as the most popular option for this specific install. IMPORTANT SAFETY/FUNCTION NOTE found during this research: installers must disconnect the Active Noise Cancellation (ANC) module — located behind the glove compartment — as part of this install; not documented why, but confirmed as a required step by multiple owners.
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.