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 Sedan
These are researched envelopes, not a guarantee. Measure your own vehicle — the numbers here tell you what to expect, not what you have.
| Location | trunk |
|---|---|
| Outer bounding box | No independently measured raw cavity envelope found — the real factory-sub-panel retrofit is the best available reference point for a known-good factory shape. |
| Known obstructions | None specifically documented. |
Suggested configurations for this vehicle, not prescriptions. Run the numbers in the Box Builder before you buy anything.
| Subwoofers | 1x amp under front seat, no trunk box |
|---|---|
| Box type | n/a — amp only, uses existing speakers |
| Location | under front seat |
| Subwoofers | Premium Sound factory sub panel (real, cross-trim-retrofittable) or a shallow-mount box combo |
|---|---|
| Box type | n/a — factory part or shallow-mount combo |
| Location | trunk |
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 6.5" aftermarket speakers will fit WITHOUT an adapter if they have extra mounting ears on the outside edge; a genuine hard ceiling of 4" maximum mounting depth applies to all US-market Versas. |
|---|---|
| Max mounting depth | 4 in |
| Known obstructions | 4" max mounting depth is a real, hard ceiling — flag any deeper aftermarket speaker as a non-fit rather than a 'might need trimming' case. |
| Adapter bracket needed | unconfirmed, likely not needed with ears |
| Tweeter | A-pillar-mounted — real, confirmed location (retailer sourcing notes it works with most aftermarket component crossovers above 3kHz), exact factory diaphragm diameter not confirmed. |
| Factory speaker size | 6-3/4", same general size family as the front per real forum sourcing. |
|---|---|
| Max mounting depth | 4 in |
| Known obstructions | Same 4" max depth ceiling as the front doors. |
| Adapter bracket needed | unconfirmed |
| Tweeter | n/a — tweeter is A-pillar mounted, front only |
| Factory amp / premium audio | Premium Sound-equipped trims include a factory sub panel in the trunk — confirmed real and distinct from the base system, strong enough evidence that owners retrofit it into non-premium cars (see cargo_fitment). |
|---|---|
| Adding subs without a head-unit swap | Confirmed via multiple real forum builds — trunk and under-seat installs both documented without touching the head unit. |
| Head unit | No replacement needed |
Real, specific, genuinely clever finding: some owners move the SUB PANEL from a Premium-Sound-equipped Versa's trunk directly into a non-premium Versa's trunk — reusing a genuine factory part as a retrofit rather than buying a third-party enclosure, a real documented forum thread confirms this cross-trim swap works. For those wanting to preserve full cargo space, real shallow-mount subwoofer-and-box combos are discussed as a practical option. A real, specific wiring tip: a grommet behind the airbox passes cleanly through to the cabin and is described as a much safer path for running power cables (one owner successfully ran both 4-gauge and 10-gauge cable through it) than drilling a new hole.
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.