2003 Lexus GX470 Speaker Sizes

The 2003 Lexus GX470 factory audio system includes specific mounting locations. The overhead accommodates 3.5 inch units, and the cargo area accepts a 10 inch speaker size. Meanwhile, front door panel and rear door panel locations support 6.5 inch speakers. Compatible types for replacement and upgrade consist of subwoofer, midrange, 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
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

2003 Lexus GX470 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

2003 Lexus GX470 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 2003 Lexus GX470 factory audio configuration includes four distinct speaker locations, each serving different frequency ranges in the stock sound system.
  • Front and rear door panels share identical 6.5 inch openings, which can accept either midbass drivers for component setups or full-range speakers for simpler configurations.
  • Overhead positions utilize smaller 3.5 inch openings designated for midrange frequencies, potentially supplementing the door-mounted speakers in the factory configuration.
  • The cargo area provides a 10 inch mounting location specifically designed for subwoofer installation, offering low-frequency reinforcement from the factory.
  • Door panel speakers typically receive priority during upgrades since they handle the majority of audible frequencies and often show the most noticeable improvement when replaced.
  • Component speaker systems might utilize the door locations for dedicated midbass drivers while the overhead positions could theoretically accommodate tweeters, though size constraints apply to the 3.5 inch openings.
  • The existing subwoofer location in the cargo area may limit space for larger aftermarket enclosures, though the 10 inch opening suggests reasonable low-frequency capability from the factory position.
  • Full-range speakers in the door positions would handle wider frequency ranges independently, while midbass drivers would require separate tweeters for high-frequency reproduction.
  • The radio accepts both single DIN and double DIN head units, providing flexibility for aftermarket receiver upgrades that might complement speaker improvements.