2017 BMW X3 Speaker Sizes

The 2017 BMW X3 factory audio system contains specific factory locations for audio components. Center dash, d-pillar, front door panel, and rear door panel locations accept a 1 inch speaker size, while below seats locations accommodate an 8 inch unit. Furthermore, center dash, d-pillar, front door panel, and rear door panel locations support 4 inch speakers. Compatible speaker types for replacement and upgrade projects include tweeters, midranges, and subwoofers.

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

Speaker Details by Location
Location	Size	Type	Notes
Below Seats	8	Subwoofer	Very limited height clearance Medium replacement priority Replacement difficulty: medium
Center Dash	1	Tweeter	Requires dashboard disassembly Medium replacement priority Replacement difficulty: medium
Center Dash	4	Midrange	Requires dashboard disassembly Medium replacement priority Replacement difficulty: medium
D-Pillar	1	Tweeter	Extremely difficult access Professional service only Low replacement priority Replacement difficulty: high
D-Pillar	4	Midrange	Extremely difficult access Professional service only Low replacement priority Replacement difficulty: high
Front Door Panel	1	Tweeter	Standard installation High replacement priority Replacement difficulty: low
Front Door Panel	4	Midrange	Standard installation High replacement priority Replacement difficulty: low
Rear Door Panel	1	Tweeter	Standard installation Medium replacement priority Replacement difficulty: low
Rear Door Panel	4	Midrange	Standard installation Medium replacement priority Replacement difficulty: low

2017 BMW X3 Speaker Replacement Summary

9 total positions

4 easy to replace

2 high priority

2 professional only

Replacement difficulty:

Low: 4 Medium: 3 High: 2

Replacement priority:

High: 2 Medium: 5 Low: 2

Additional Notes

The 2017 BMW X3 utilizes a three-way speaker configuration with distinct components for different frequency ranges distributed across multiple locations throughout the cabin.
Tweeters measuring 1 inch are positioned in four separate locations: the center dash, d-pillar areas, and both front and rear door panels, suggesting a focus on high-frequency sound dispersion.
Midrange speakers at 4 inches occupy the same four locations as the tweeters, indicating a component speaker system rather than full-range coaxial units.
The subwoofer placement below the seats at 8 inches may provide low-frequency reinforcement without consuming traditional trunk or cargo space.
Replacement strategies might prioritize the midrange speakers first, as they typically handle the majority of vocal and instrumental content in music reproduction.
The separated tweeter and midrange configuration allows for individual component upgrades, potentially enabling targeted improvements to specific frequency ranges.
Aftermarket component speakers designed for these size specifications could maintain the factory mounting locations while potentially offering enhanced materials like silk dome tweeters or treated paper cone midranges.
The under-seat subwoofer location may present installation considerations regarding depth and motor structure when selecting replacement options.
Sound staging might benefit from the distributed tweeter placement, as multiple high-frequency sources can create a wider soundfield across the listening area.