2009 Lexus RX350 Speaker Sizes

A speaker size chart for the 2009 Lexus RX350 provides factory speaker specifications and locations throughout the vehicle. Information covers front door panel, rear door panel, cargo area, and overhead positions. Details support replacement or aftermarket audio system upgrade planning by listing original equipment sizes installed at each location within the cabin.

As an Amazon Associate, we may earn a commission from purchases made through links marked. Read more in our disclaimer.

Speaker Details by Location
Location Size Type Notes
Cargo Area 10 Subwoofer
  • Ample working space
  • Medium replacement priority
  • Replacement difficulty: low
Front Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Overhead 3.5 Midrange
  • Requires headliner removal
  • Professional service only
  • Low replacement priority
  • Replacement difficulty: high
Rear Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low

2009 Lexus RX350 Speaker Replacement Summary

4 total positions
3 easy to replace
2 high priority
1 professional only

Replacement difficulty:

Low: 3 Medium: 0 High: 1

Replacement priority:

High: 2 Medium: 1 Low: 1

2009 Lexus RX350 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 2009 Lexus RX350 features a factory audio system with speakers distributed across four distinct locations, suggesting a multi-zone sound design approach that targets different frequency ranges in separate areas of the cabin and cargo space.
  • Front and rear door panels share identical 6.5 inch speaker specifications with compatibility for both midbass and full-range drivers, which may indicate that the factory setup relies on these locations as the primary sound source for passengers.
  • The overhead position houses a smaller 3.5 inch midrange speaker, likely positioned to enhance vocal clarity and mid-frequency dispersion from an elevated mounting point within the interior.
  • A 10 inch subwoofer location exists in the cargo area, providing dedicated low-frequency reproduction that is physically separated from the mid and high-frequency drivers in the passenger compartment.
  • Upgrading the door panel speakers could be prioritized given their dual-purpose compatibility, as replacement components in these positions would handle the bulk of the frequency spectrum for most listening scenarios.
  • The radio cavity accepts both single DIN and double DIN head units, which may offer flexibility when integrating aftermarket audio sources or processors to drive upgraded speaker components.
  • Component speaker systems with separate woofers and tweeters could potentially utilize the existing door panel locations for woofer installation, though tweeter mounting would require additional consideration given the factory configuration.
  • The overhead midrange position might contribute to soundstage height and center imaging, though its smaller size and midrange-specific designation suggests limited frequency response compared to the larger door-mounted drivers.
  • Aftermarket subwoofer upgrades in the cargo area would need to accommodate the 10 inch size specification or require modifications to the mounting location for alternative driver dimensions.