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 | cargo area |
|---|---|
| Outer bounding box | No independently measured raw cavity envelope found. |
| Known obstructions | None specifically documented beyond the confirmed absence of any factory subwoofer infrastructure. |
Suggested configurations for this vehicle, not prescriptions. Run the numbers in the Box Builder before you buy anything.
| Subwoofers | 1x10" amplified all-in-one (named option: Belva Audio 2005-2013 package, no separate amp needed) |
|---|---|
| Box type | sealed, loaded/amplified |
| Location | cargo area |
| Subwoofers | 1x10" or 1x12" sealed custom fiberglass stealth build (documented technique: passenger-side rear corner, preserves under-floor storage) with a dedicated aftermarket amp |
|---|---|
| Box type | sealed, custom fiberglass |
| Location | cargo area, passenger-side rear corner |
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 | 6x9" — confirmed via multiple forum/retailer sources (Jeep's 2006, 2007 and 2009 sheets: 'two 6 x 9-inch woofers mounted in the front doors'; the rear doors take 6.5-inch speakers, not 6x9). |
|---|---|
| Known obstructions | None specifically documented |
| Adapter bracket needed | unconfirmed |
| Factory speaker size | 6.5" full-range — Jeep's 2006, 2007 and 2009 sheets: 'two 6.5-inch full-range speakers mounted in the rear doors' on both the base six-speaker system and the Boston Acoustics system. Not 6x9" (an OEM parts listing for Boston Acoustics P05081670AB labelled it a 2005-2010 WK rear-door speaker); Jeep puts the 6x9 woofers in the front doors. |
|---|---|
| Known obstructions | None specifically documented |
| Adapter bracket needed | unconfirmed |
| Factory amp / premium audio | Boston Acoustics premium system (available trims) — a CONFIRMED BRAND SWITCH from the preceding WJ generation's Infinity system (see the 1999-2004 page), not a continuation. Specific spec: a 276W Boston Acoustics amplifier, located in the rear, driver side, behind a panel — specific identification tip: the amp is visible by checking the cargo-area vent on the driver's side. Optional integration: the Boston Premium system was available paired with the MyGig multimedia/navigation upgrade. IMPORTANT LIMITATION: the factory Boston Acoustics amplifier has NO DEDICATED CHANNEL for a subwoofer, meaning any added sub needs its own separate amp channel, not a spare factory one. Jeep's sheets confirm the 276-watt figure and that the Boston system has no subwoofer: 'Six Boston Acoustics (includes two 3.5-inch mid- to high-frequency instrument panel-mounted speakers, two 6 x 9-inch woofers mounted in the front doors and two 6.5-inch full-range speakers mounted in the rear doors; plus six channel, 276-watt amplifier with Digital Signal Processing)'. 2009: a package on Laredo, standard on Limited and Overland. The base system is six speakers with no amplifier named. |
|---|---|
| Adding subs without a head-unit swap | Confirmed as a common owner project (multiple forum threads specifically about adding a powered subwoofer to the Boston Acoustics Premium system) — but given the no-dedicated-sub-channel limitation, expect to add a full aftermarket amp+sub combo rather than tapping an existing sub channel. |
| Head unit | No replacement needed |
IMPORTANT: this vehicle has NO FACTORY SUBWOOFER AT ALL, even on the premium Boston Acoustics tier — a confirmed absence, unlike the Jeep Patriot (also), which DOES have one. Any bass has to come from an aftermarket addition from scratch.
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.