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 | cargo area behind the third row |
|---|---|
| Outer bounding box | No cargo length, height or opening in inches found. Maker-published, not a measured usable cavity: Honda's 2003 interior release says the floor "allows loading of four-foot wide items, like plywood sheets, between the wheel wells". A capability statement, not a measured width; the seat position it assumes is not given here. |
| Known obstructions | EX models carry a rear-mounted 25 cm bass woofer (Honda 2003; location within the vehicle not stated beyond "rear-mounted"). A 1.5 cu ft covered underfloor area sits behind the third-row seat. |
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 | Honda 2003 interior release, LX: "four 16-cm speakers in the side doors" (16 cm = 6.30 in by conversion). EX sizes not stated beyond the added tweeters and woofer. |
|---|---|
| Adapter bracket needed | unconfirmed |
| Tweeter | EX only (Honda 2003): "two 1.5-cm tweeters (front console)" - printed as 1.5-cm; whether that is a typo for 1.5 in is not known |
| Factory speaker size | Honda 2003: LX "four 16-cm speakers in the side doors" (four door speakers, so one per door on a four-door body; Honda does not say front or rear). |
|---|---|
| Adapter bracket needed | unconfirmed |
| Factory amp / premium audio | Honda, by trim (no brand name printed). 2003 interior release: base "AM/FM stereo and in-dash, single-disc CD player"; LX "four 16-cm speakers in the side doors and a four-channel, 130-watt, stereo amplifier"; EX adds a cassette player, "two 1.5-cm tweeters (front console)", "a rear-mounted 25-cm bass woofer and a five-channel, 155-watt, amplifier" (the 2003 features chart: "w/CD Player & 4 Speakers" and "w/CD Player, Cassette & 7 Speakers"). 2006 features chart: LX "AM/FM/CD Audio System with 4 Speakers"; EX "AM/FM/XM Ready/6-Disc In-Dash CD Changer/ Audio System with 7 Speakers" and "Rear Subwoofer"; no watts. The 2008 specification page carries no audio rows. 2004, 2005, 2007, 2008 audio not read. |
|---|
Honda 2003 interior release: "16.1 cu.-ft of space behind the third-row seat", "48.7 cu.-ft" with the second row in use, "90.3 cubic feet behind the first row seats", "1.5-cubic foot covered cargo area built into the rear cargo floor behind the third-row seat", and the floor "allows loading of four-foot wide items, like plywood sheets, between the wheel wells". Honda 2008 specification rows: "Cargo Volume (cu. ft., behind 3rd-row)" 15.9, "behind 2nd-row" 47.6, "behind 1st-row" 87.6. No SAE or EPA label printed. No cargo length, height or opening in inches. 2004-2007 not read. No box made for a 2003-2008 Pilot 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.