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, 3-row
These are researched envelopes, not a guarantee. Measure your own vehicle — the numbers here tell you what to expect, not what you have.
| Location | left rear corner |
|---|---|
| Outer bounding box | No independently measured raw cavity envelope found. |
| Known obstructions | None specifically documented beyond the trim/screw removal process itself. |
Suggested configurations for this vehicle, not prescriptions. Run the numbers in the Box Builder before you buy anything.
| Subwoofers | 1x8" or 1x10" powered, factory-location reuse (premium trims) |
|---|---|
| Box type | n/a — factory location reuse |
| Location | left rear corner |
| Subwoofers | 1x10" or 1x12" 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" with a 1" tweeter — same as the 1st Gen companion entry. |
|---|---|
| Known obstructions | None specifically documented |
| Adapter bracket needed | unconfirmed |
| Tweeter | Front doors, alongside the 6-3/4" woofer — same architecture as the 1st Gen companion entry |
| Midrange | n/a — 2-way woofer+tweeter door layout |
| Factory speaker size | REAL, CONFIRMED DIFFERENCE from the 1st Gen companion entry: this generation has ADDITIONAL rear 6-3/4" speakers beyond the standard rear-door pair — a real, specific speaker-count increase over the prior generation, not just a wattage bump. |
|---|---|
| Known obstructions | None specifically documented |
| Adapter bracket needed | unconfirmed |
| Tweeter | n/a — not confirmed as a rear-door component |
| Factory amp / premium audio | RESOLVED 2026-07-19: this generation's premium audio is INFINITY, matching the 1st Gen companion entry — NOT Harman Kardon. Real, specific, trim-level breakdown confirmed: SLT trim (as part of the SLT G package) gets a 276W, 8-speaker Infinity system; Limited trim (the top tier) gets a 378W, 8-speaker Infinity system WITH a subwoofer. A separate real finding: some 2008-era trims also offered an Alpine Premium Audio option as an alternative tier. The 'Harman-Kardon' how-to guide found in initial research (cited below) was a real, genuine misattribution — direct verification confirms Harman Kardon systems weren't used on Dodge Durango until a much later generation (2020+), not this one. Corrected here rather than left standing. |
|---|---|
| Adding subs without a head-unit swap | Confirmed via a real, dedicated, complete how-to guide for replacing the factory subwoofer. |
| Head unit | No replacement needed |
Real, specific factory location confirmed, same general approach already documented on the 1998-2003 entry: the subwoofer installs at the LEFT REAR CORNER on premium-audio trims — removal requires taking out the left-rear-quarter-panel trim and six screws.
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.