1979 BMW 320i Speaker Sizes

The 1979 BMW 320i speaker size chart provides factory audio system specifications for multiple locations throughout the vehicle. Information covers front door panel positions, front kick panel positions, rear deck lid positions, and rear door panel positions. Data supports replacement or aftermarket upgrade planning by detailing factory speaker configurations and locations.

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Speaker Details by Location
Location Size Type Notes
Front Door Panel 5.25 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Front Kick Panel 5.25 Midbass
  • Cramped working position
  • Medium replacement priority
  • Replacement difficulty: medium
Rear Deck Lid 5.25 Midbass / Full-Range
  • Access through trunk
  • Medium replacement priority
  • Replacement difficulty: low
Rear Door Panel 5.25 Midbass / Full-Range
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low

1979 BMW 320i Speaker Replacement Summary

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

Replacement difficulty:

Low: 3 Medium: 1 High: 0

Replacement priority:

High: 1 Medium: 3 Low: 0

1979 BMW 320i Radio Slot Size (DIN)

DIN Type Size (inch) Size (mm) Notes
Single DIN 7"×2" 180×50 Standard size for basic car radios with small display or no display
  • Always measure the slot before purchasing a new radio
  • Check slot depth - it may vary

Additional Notes

  • The 1979 BMW 320i maintains a consistent 5.25 inch speaker size across all four positions, which may simplify component selection when planning a system upgrade.
  • Front kick panel locations are specified for midbass drivers exclusively, suggesting these positions may be optimized for lower frequency reproduction without the need for tweeter integration.
  • Door panel and rear deck lid positions accommodate both midbass and full-range speaker types, potentially offering flexibility in system configuration depending on whether a dedicated tweeter setup is desired.
  • The availability of four separate speaker locations throughout the cabin could allow for balanced sound staging when populated with matched components of appropriate power handling.
  • Single DIN radio compatibility indicates a standard head unit opening, which may influence amplifier integration options and source unit selection for those considering aftermarket audio improvements.
  • The uniform sizing across all positions suggests that upgrading to higher sensitivity speakers in the 5.25 inch format could provide noticeable improvements in output and clarity without requiring modifications to factory mounting locations.
  • Rear door panel speaker locations paired with rear deck positions may provide redundancy in rear sound coverage, though this could also contribute to phase issues if not properly configured during installation.