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 (retailer-measured, promoted from existing notes) |
|---|---|
| Outer bounding box | 34"W x 17"D x 32"/27"H |
| Known obstructions | Factory enclosure (Pioneer trims) is small at 0.529 ft3 — real anchor point but not representative of the full cargo envelope available for a custom build |
| Usable volume estimate | 3 ft³ |
Suggested configurations for this vehicle, not prescriptions. Run the numbers in the Box Builder before you buy anything.
| Subwoofers | 1x10" sealed (direct-fit Stealthbox, factory location) |
|---|---|
| Box type | sealed |
| Location | factory subwoofer location, zero cargo loss |
| Subwoofers | 1x10" or 1x12" standalone |
|---|---|
| Box type | sealed or ported |
| 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" low/mid-range — real, confirmed, part of a complete Pioneer premium system breakdown. Real, named OEM part: Pioneer 25802875. |
|---|---|
| Adapter bracket needed | unconfirmed |
| Tweeter | A-pillar |
| Factory speaker size | 6.5" full-range — real, confirmed |
|---|---|
| Adapter bracket needed | unconfirmed |
| Tweeter | n/a — tweeter is front A-pillar only |
| Factory amp / premium audio | Pioneer-branded factory system confirmed on some trims, with an 8" factory sub. Real, complete premium-tier breakdown confirmed: 6.5" front door (low/mid), 6.5" rear door (full-range), 3.5" center dash midrange, 1"/1.5" A-pillar tweeter (4-ohm), 8" DVC subwoofer. |
|---|---|
| Adding subs without a head-unit swap | Confirmed straightforward via the Stealthbox's factory-location replacement design. REAL TECHNICAL CAVEAT found: on 4-cylinder Equinox/Terrain models, installing aftermarket audio equipment may require disabling Active Noise Cancellation — a genuinely specific, non-obvious integration note worth surfacing. |
| Head unit | No replacement needed |
Real measured cargo space: 34"W x 17"D x 32"/27"H. Stock factory enclosure is small — 15 liters (0.529 ft3). Factory sub (Pioneer-equipped trims): 8", right side of cargo area. JL Audio Stealthbox is a confirmed direct-fit replacement using the OEM grille opening.
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.