2018 Chevrolet Express Speaker Sizes

The 2018 Chevrolet Express factory audio system locations include overhead positions that accommodate 4x6 inch units, front door panels that accept 6.75 inch speakers, and rear cargo area doors that support 6x9 inch units. Such configurations facilitate the installation of full-range and midbass units during any replacement upgrade.

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 6.75 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Overhead 4x6 Full-Range
  • Requires headliner removal
  • Professional service only
  • Low replacement priority
  • Replacement difficulty: high
Rear Cargo Area Doors 6x9 Full-Range
  • Access through rear opening
  • Medium replacement priority
  • Replacement difficulty: low

2018 Chevrolet Express Speaker Replacement Summary

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

Replacement difficulty:

Low: 2 Medium: 0 High: 1

Replacement priority:

High: 1 Medium: 1 Low: 1

Additional Notes

  • The overhead position in the 2018 Chevrolet Express uses a 4x6 inch oval speaker slot, which is limited to full-range type compatibility only, suggesting this location may offer less flexibility compared to other positions in the vehicle.
  • The front door panel position accommodates a 6.75 inch speaker and supports both midbass and full-range types, which could indicate a greater potential for low-to-midrange frequency reproduction relative to the overhead slot.
  • The rear cargo area doors appear to house 6x9 inch speaker slots, a size generally associated with broader frequency response and higher power handling among standard automotive speaker formats.
  • Given that midbass capability is only listed for the front door panel position, that location may represent a priority placement for those seeking improved low-frequency presence in the listening environment.
  • The combination of three distinct speaker positions across the overhead, front doors, and rear cargo area doors suggests a multi-zone audio layout, where each zone may contribute differently to the overall sound staging of the vehicle.