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 (2WD and 4x4)
These are researched envelopes, not a guarantee. Measure your own vehicle — the numbers here tell you what to expect, not what you have.
| Location | behind the third row, rear cargo area |
|---|---|
| Outer bounding box | Published box footprints are lower bounds on the cavity, not the cavity. NET Audio '2007-2009 Chrysler Aspen Sub Box Big Sealed/Ported': 47.75 x 16.75 x 17 in (as printed; axes not labelled), 5.0 cu ft, mounting depth 10 in. NET Audio '2007-2009 Chrysler Aspen Sub Box Small Sealed/Ported': 47.75 x 10.75 x 17 in (as printed; axes not labelled), 2.6 cu ft, mounting depth 7 in ('only 10 3/4 deep on the bottom'). Same footprints as NET's Durango 2004-2009 boxes. |
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 | Stellantis press kits give counts and brands, not sizes; Metra does not cover Chrysler |
|---|---|
| Adapter bracket needed | unconfirmed |
| Adapter bracket needed | unconfirmed |
|---|
| Factory amp / premium audio | Chrysler, 2007 What's New: 'Available eight-speaker Infinity theatre-style surround sound system'; no watts or subwoofer stated. Chrysler, 2009 press kit: Limited with E Package (Premium I Audio) has eight Alpine speakers and a '276-amp subwoofer'; Limited with J Package (Premium II Audio) eight Alpine speakers and a '368-amp subwoofer' (no wattage in the unit stated; the kit's wording is 'amp'). 2008 audio not read. The same Infinity/Alpine split appears on the Durango twin. |
|---|
Chrysler's 2007 launch material: 68.4 cu ft of cargo room with the third row folded (behind the second row; the figure carries no SAE label). No figure for the space behind the third row was found for the Aspen. EPA lists luggage volume as 0 for the Aspen (SUV class). NET's own text says the Aspen/Durango keeps cargo room behind the third row where most SUVs do not.
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.