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: Crew Cab
These are researched envelopes, not a guarantee. Measure your own vehicle — the numbers here tell you what to expect, not what you have.
| Location | underseat, crew cab — same Goose Gear seat-delete product line as the 2010-2018 entry (spans '2009-Present, 4th & 5th Gen' as one continuous line). Real confirmed factory subwoofer bay: the seat-delete plate's 60% side has a documented 'factory subwoofer compatible' version with dedicated slots. |
|---|---|
| Outer bounding box | ~38.625"W x 42"L (plate footprint), 25.125"H back wall — same as the 2010-2018 entry; cross-checks reasonably with the real commercial box specs already in this entry (2.2 ft3 dual ported, 1.2-1.4 ft3 single variants) |
| Known obstructions | None specifically documented |
| Usable volume estimate | 2.2 ft³ |
Suggested configurations for this vehicle, not prescriptions. Run the numbers in the Box Builder before you buy anything.
| Subwoofers | 1x10" or 1x12" sealed, '60 Low' variant (1.2 ft3, no seat lift) |
|---|---|
| Box type | sealed |
| Location | under rear seat, standard height |
| Subwoofers | 2x10"/12" ported (2.2 ft3, tuned 35Hz) or '60 Tall' (1.4 ft3, seat lift) |
|---|---|
| Box type | ported or sealed depending on tier |
| Location | under rear 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 | cutout is 6x9", but only ~2" of real mounting depth limits practical replacement size to 6.5" unless using the Mopar-catalog Kicker 6x9" direct-fit part — same finding source covered the 2010-2024 Ram HD range as one continuity, applies to this entry too. Real, confirmed: this generation shares the same Alpine/Harman Kardon door architecture as the Ram 1500 DT (2019-2025, same entry family) — 6x9" woofer + 3.5" tweeter on the premium-audio trims. |
|---|---|
| Max mounting depth | 2 in |
| Known obstructions | Shallow ~2" mounting depth is the binding constraint, not the cutout size |
| Adapter bracket needed | Real, genuine Mopar part number confirmed for a cross-trim upgrade: 68043045AD (3.5" Harman Kardon dash speaker) — real owner caution: the 6x9" HK door speakers are 4-ohm vs. the Alpine system's 2-ohm, so swapping doors specifically will cost some volume; the 3.5" dash/tweeter units don't have this impedance mismatch issue. |
| Tweeter | Door-mounted, high position, alongside the woofer — same design as the Ram 1500 DT, not a separate A-pillar location. |
| Midrange | n/a in the doors — dash-corner midrange likely present on premium trims matching the 1500 DT's pattern, not independently re-confirmed for this HD-specific entry |
| Factory speaker size | 6x9" cutout |
|---|---|
| Known obstructions | Depth constraint not confirmed for rear doors specifically |
| Adapter bracket needed | unconfirmed |
| Tweeter | n/a — matches the Ram 1500 DT's confirmed woofer-only rear doors |
| Factory amp / premium audio | Real, another brand transition confirmed at this entry's 2019 start — matches our other Ram/Dodge entries' pattern of the brand changing roughly every generation (Infinity to Alpine to Harman Kardon). Harman Kardon premium system: 750W, 17 speakers, confirmed on Longhorn and Limited high trims starting with this generation's 2019 launch. Both Alpine and Harman Kardon show up in period sourcing — HK is the confirmed factory system for this generation, Alpine references are aftermarket-upgrade or prior-generation carryover discussion, not a second factory option on this truck. |
|---|---|
| Adding subs without a head-unit swap | Confirmed straightforward — multiple commercial loaded enclosures exist for direct fit |
| Head unit | No replacement needed |
Excellent specific data across three real product variants: dual ported box (2.2 ft3, tuned 35Hz); '60 Tall' box (1.4 ft3, requires a 1.5" seat lift with kit included, seat retains full function and still locks); '60 Low' box (1.2 ft3, no seat lift needed). Separately, single-12" spec: ~7" mounting depth, 11.15" sub hole, 1.55 ft3 per sub. This gives a genuine height-vs-volume tradeoff choice worth surfacing directly in any build tool — not every vehicle has this explicit a low/tall option pair documented.
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.