2016-2020 Hyundai Elantra 6th Gen (AD) — subwoofer box fitment

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 Sedan

Where a box actually fits

These are researched envelopes, not a guarantee. Measure your own vehicle — the numbers here tell you what to expect, not what you have.

Trunk Solid

Locationdriver's side of trunk
Outer bounding boxNot independently measured — product proxy: shallow-mount (3" or less depth) sub used for cargo preservation
Known obstructionsNone specifically documented
Usable volume estimate0.7 ft³

Starting points

Suggested configurations for this vehicle, not prescriptions. Run the numbers in the Box Builder before you buy anything.

Budget

Subwoofers1x10" sealed, 500W RMS, shallow-mount
Box typesealed
Locationdriver's side of trunk

Enthusiast

Subwoofers2x12" sealed, 2 ft3
Box typesealed
Locationtrunk

Door speaker fitment

Sizes and depths below are what research turned up for this generation. Confirm against your own vehicle before cutting or ordering — trim levels vary.

Front doors Solid

Factory speaker size6-3/4" woofer + 1.577" tweeter
Known obstructionsNone specifically documented
Adapter bracket neededunconfirmed
TweeterFront door-mounted, part of a 2-way component set alongside the 6-3/4" woofer — real, confirmed.

Rear doors Solid

Factory speaker size6-3/4" (same as front)
Known obstructionsNone specifically documented
Adapter bracket neededunconfirmed
Tweetern/a — tweeter is front-door mounted, front only

Factory audio integration

Factory amp / premium audioReal, partial. Infinity premium system — 8 speakers including a center channel and subwoofer — confirmed on the Limited trim for 2020 specifically. For 2016-2019, an Infinity 8-speaker system was available but bundled into a ~$2,500 tech package rather than confirmed as a simple trim-gate; exact trim/year boundaries within those years not independently confirmed.
Adding subs without a head-unit swapConfirmed straightforward — trunk-based builds don't touch the head unit
Head unitNo replacement needed

Known integration products

Mounting locations

Trunk Solid

Real specific product: NVX custom 10" sealed, 500W RMS, installs driver's side of trunk, preloaded VSW102v2 sub. Shallow-mount subs (3" or less depth) are noted as especially useful here for cargo preservation.

Builds and products found for this vehicle

Outside links. Some are commercial products, some are owner builds posted on forums — the label says which. We do not endorse any of them.

Build it for this vehicle

Each link opens the tool with this vehicle already selected.

Before you cut anything

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.