2017 Buick LaCrosse Speaker Sizes

The 2017 Buick LaCrosse factory audio system features specific locations for acoustic components, where the a-pillar accommodates a 1 inch speaker size, and the center dash and rear deck lid accept 3.5 inch units. Front door panels and rear door panels accommodate 6.75 inch speakers, while the rear deck lid also accepts 6x9 inch units. Compatible speaker types for replacement and upgrade projects include tweeters, full-range units, and midbass drivers.

Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.

Speaker Details by Location
Location Size Type Notes
A-Pillar 1 Tweeter
  • Requires panel disassembly
  • Professional installation recommended
  • Low replacement priority
  • Replacement difficulty: high
Center Dash 3.5 Full-Range
  • Requires dashboard disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
Front Door Panel 6.75 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Deck Lid 3.5 Full-Range
  • Access through trunk
  • Medium replacement priority
  • Replacement difficulty: low
Rear Deck Lid 6x9 Full-Range
  • Access through trunk
  • Medium replacement priority
  • Replacement difficulty: low
Rear Door Panel 6.75 Midbass / Full-Range
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low

2017 Buick LaCrosse Speaker Replacement Summary

6 total positions
4 easy to replace
1 high priority
1 professional only

Replacement difficulty:

Low: 4 Medium: 1 High: 1

Replacement priority:

High: 1 Medium: 4 Low: 1

Additional Notes

  • The 2017 Buick LaCrosse factory audio system incorporates dedicated tweeters in the A-pillar positions, which may indicate a factory component speaker configuration rather than simple coaxial units in all locations.
  • Replacing the front and rear door panel speakers could be a logical starting point for audio enhancement, as these 6.75 inch locations typically handle midrange frequencies and often contribute substantially to overall sound staging.
  • The rear deck lid contains two distinct speaker sizes: 3.5 inch full-range units alongside 6x9 inch full-range speakers, suggesting a multi-driver rear fill configuration that may complement the front soundstage.
  • Aftermarket component speaker systems with separate tweeters could potentially utilize the existing A-pillar tweeter locations, though compatibility with mounting depth and wiring would need verification.
  • The center dash 3.5 inch full-range speaker likely serves as a center channel for voice clarity in navigation and phone calls, though its contribution to music reproduction may be minimal compared to door-mounted speakers.
  • Upgrading to midbass-focused drivers in the door panel locations might provide enhanced low-frequency response, particularly if the factory speakers lack adequate cone excursion or motor strength.
  • The 6x9 inch rear deck speakers offer an oval footprint that can potentially move more air than comparably-sized round speakers, though sound quality varies considerably among aftermarket options in this size category.
  • Full-range compatible locations throughout the vehicle suggest flexibility in speaker selection, allowing for either coaxial designs with integrated tweeters or component systems with separate high-frequency drivers.