2018 Honda Ridgeline Speaker Sizes

The 2018 Honda Ridgeline speaker size chart provides factory audio system specifications for replacement and upgrade purposes. Information includes speaker locations throughout the cabin: a-pillar, center dash, front door panel, rear door panel, and behind seat positions. The chart details factory specifications to assist with aftermarket component compatibility and audio system modifications.

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Speaker Details by Location
Location Size Type Notes
A-Pillar 1 Tweeter
  • Requires panel disassembly
  • Professional installation recommended
  • Low replacement priority
  • Replacement difficulty: high
Behind Seat 8 Subwoofer
  • May require seat removal
  • Limited working space
  • Medium replacement priority
  • Replacement difficulty: medium
Center Dash 3.5 Full-Range
  • Requires dashboard disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
Front Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low

2018 Honda Ridgeline Speaker Replacement Summary

5 total positions
2 easy to replace
1 high priority
1 professional only

Replacement difficulty:

Low: 2 Medium: 2 High: 1

Replacement priority:

High: 1 Medium: 3 Low: 1

2018 Honda Ridgeline Radio Slot Size (DIN)

DIN Type Size (inch) Size (mm) Notes
Single DIN or Double DIN 7"×2" or 7"×4" 180×50 or 180×100 Vehicle supports both radio sizes
  • Always measure the slot before purchasing a new radio
  • Check slot depth - it may vary

Additional Notes

  • The A-pillar tweeters in the 2018 Honda Ridgeline handle high-frequency reproduction, which could benefit from aftermarket upgrades if the factory units lack clarity or detail in the upper ranges.
  • Center dash speakers at 3.5 inches typically serve vocal and mid-range frequencies, and their full-range design suggests they contribute to dialogue clarity and overall sound staging.
  • Front and rear door panels share the same 6.5-inch size specification, offering flexibility to install either dedicated midbass drivers for improved low-end response or full-range speakers for broader frequency coverage.
  • The behind-seat location accommodates an 8-inch subwoofer, providing factory bass reinforcement that could be replaced with higher-excursion units for increased low-frequency output and impact.
  • Replacing door panel speakers might take priority over other locations, since they typically handle the majority of the audible frequency spectrum and contribute substantially to perceived sound quality.
  • The component-style arrangement with separate tweeters and larger door speakers indicates a factory system designed with some attention to frequency separation, though aftermarket components could further refine this division.
  • Both single and double DIN radio compatibility allows for head unit upgrades without dashboard modification concerns, potentially enabling additional power output or signal processing capabilities.
  • The combination of tweeter, mid-range, and subwoofer locations suggests a three-way configuration that addresses different frequency bands through purpose-specific speaker types.