2004 Lexus GS300 Speaker Sizes

The 2004 Lexus GS300 factory audio system features a rear deck lid that accommodates a 10 inch speaker size, while front door panels and rear door panels support 6.5 inch speakers. Available replacement and upgrade speaker types consist of subwoofers, midbass, and full-range units.

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

Speaker Details by Location
Location Size Type Notes
Front Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Deck Lid 10 Subwoofer
  • Access through trunk
  • Medium replacement priority
  • Replacement difficulty: low
Rear Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low

2004 Lexus GS300 Speaker Replacement Summary

3 total positions
3 easy to replace
1 high priority
0 professional only

Replacement difficulty:

Low: 3 Medium: 0 High: 0

Replacement priority:

High: 1 Medium: 2 Low: 0

2004 Lexus GS300 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 2004 Lexus GS300 provides three distinct speaker locations with varying sizes that may allow for different upgrade approaches depending on listening priorities and budget considerations.
  • The rear deck lid contains a 10-inch subwoofer location that could serve as a foundation for low-frequency reproduction without requiring aftermarket enclosures or trunk space modifications.
  • Both front and rear door panels accommodate 6.5-inch speakers, which may simplify the upgrade process when seeking a uniform speaker set across all door locations.
  • The door panel speakers accept either midbass or full-range types, potentially offering flexibility in system design depending on whether separate tweeters are retained or installed.
  • Full-range speakers in the 6.5-inch locations might provide a simpler installation path compared to component systems, though midbass drivers paired with tweeters could offer different tonal characteristics.
  • The factory rear deck subwoofer location suggests that bass reproduction was addressed separately from the door speakers, which might influence replacement strategies for maintaining balanced output.
  • Upgrading the 10-inch rear deck subwoofer could address low-frequency extension and impact before considering door speaker replacements, particularly if bass response is the primary concern.
  • The 2004 Lexus GS300 accepts both single DIN and double DIN head units, which may expand options for aftermarket receivers with greater power output to drive upgraded speakers more effectively.
  • The identical 6.5-inch size across all door positions might reduce the complexity of selecting speakers while maintaining consistency in sensitivity and power handling throughout the cabin.
  • Component speaker systems in the front doors combined with full-range speakers in the rear positions could potentially create a more focused soundstage while maintaining rear-seat coverage.