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: Minivan
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 behind the third row (3rd-row Magic Seat folds flat into the floor) |
|---|---|
| Outer bounding box | No cargo dimensions in inches found for this generation (Honda 2011 and 2017 pages carry volumes only). |
| Known obstructions | The 3rd-row seat folds into the same floor well (Honda 2011: it can "fold completely flat into the floor"). Honda moved the spare tire for 2011: "moving the spare tire in the driver's side rear sidewall to the area underneath the front seats". |
Sizes and depths below are what research turned up for this generation. Confirm against your own vehicle before cutting or ordering — trim levels vary.
| Adapter bracket needed | unconfirmed |
|---|
| Adapter bracket needed | unconfirmed |
|---|
| Factory amp / premium audio | Honda, by trim and year (no brand name printed). 2011 specification rows: LX "229-Watt AM/FM/CD Audio System with 5 Speakers including Subwoofer"; EX and EX-L "229-Watt AM/FM//CD-Library 2GB Memory Audio System with 7 Speakers including Subwoofer"; EX-L with Navigation and Touring "246-Watt AM/FM/CD/Hard Disk Drive 15GB Memory (HDD) Audio System with 7 Speakers including Subwoofer"; Touring Elite "650-Watt ... Premium Audio System with 12 Speakers including Subwoofer and 5.1 Surround Sound Theater Mode". 2017 rows: LX "240-Watt ... 7 Speakers, Including Subwoofer"; EX and SE "270-Watt ... 7 Speakers, Including Subwoofer"; EX-L with Navigation and Touring "246-Watt ... 7 Speakers, Including Subwoofer"; Touring Elite "650-Watt AM/FM/CD Premium Audio System with 12 Speakers, Including Subwoofer and 5.1 Surround Sound Theater Mode". Trim columns were inferred from flattened page text (the EX-L 270/246-watt split is the least certain). 2012-2016 not read. |
|---|
Honda rows (identical on every trim, 2011 and 2017): "Cargo Volume (behind 3rd-row)" 38.4 cu ft; "behind 2nd-row" 93.1; "behind 1st-row" 148.5. Honda 2011 interior release: "still provide 38.4 cubic-feet of cargo volume behind the seats" with up to three passengers on the 3rd-Row Magic Seat. No SAE or EPA label printed. No cargo length, width, height or opening in inches on the pages read. Luggage ratings, not box dimensions. No box made for a 2011-2017 Odyssey was found from the box makers checked.
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.