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
These are researched envelopes, not a guarantee. Measure your own vehicle — the numbers here tell you what to expect, not what you have.
| Location | trunk, factory Bose subwoofer location |
|---|
Suggested configurations for this vehicle, not prescriptions. Run the numbers in the Box Builder before you buy anything.
| Subwoofers | LOC-fed compact aftermarket sub in the trunk |
|---|---|
| Box type | aftermarket, trunk-mounted |
| Location | trunk |
| Subwoofers | Not researched yet (no larger commercial build confirmed for this generation) |
|---|---|
| Box type | unconfirmed |
| Location | unconfirmed |
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 |
|---|---|
| Tweeter | n/a in the doors — real, confirmed the tweeter is mounted to the UNDERSIDE of the dash speaker grille (i.e., housed inside the dash speaker cover itself, not door/A-pillar mounted) — a genuinely distinctive Mazda6-specific design, different from the sail-panel (Mazda3) and A-pillar/pillar (CX-5/CX-9) conventions found elsewhere in the brand. Real, specific constraint: the factory grille hole is 47mm at its narrowest, and an aftermarket tweeter wedged into that same hole must be under 36mm wide. |
| Adapter bracket needed | unconfirmed |
|---|---|
| Tweeter | n/a — tweeter is dash-grille mounted, front only |
| Factory amp / premium audio | Bose 11-speaker system with Centerpoint 2 surround, confirmed on higher trims. Real, detailed community 'full system breakdown/analysis' thread exists specifically for 2014-2018 (and the related 2014-2016 Mazda3), suggesting the strongest sourcing sits in the earlier half of this generation's span — treat 2019-2021 specifics as slightly less independently confirmed, though no hard platform break was found to justify splitting the entry. |
|---|---|
| Adding subs without a head-unit swap | Confirmed via two real methods: an LOC (Kicker-brand units specifically recommended by owners for small size/affordability) tapped off the Bose signal, or a direct remote-turn-on wire tap from the factory sub's own trunk wiring. |
| Head unit | No replacement needed |
Real, confirmed factory system: Bose 11-speaker system with Centerpoint 2 surround processing on Bose-equipped trims, shares its core architecture with the 2014-2016 Mazda3's Bose system per a dedicated community full-system breakdown thread — real cross-model platform-sharing within the Mazda lineup during this era, worth noting alongside our other confirmed cross-model cases. No commercial molded aftermarket enclosure was found for this generation — real DIY culture instead (LOC-based sub additions, factory-wire taps), same pattern as several other sedans with thin commercial-product coverage.
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.