Vehicle Speaker Fit Guide

Speakers That Fit Your 2021 Audi A4 / A4 allroad / S4

The exact speaker sizes and mounting locations for your 2021 Audi A4 / A4 allroad / S4, matched to in-stock Diamond Audio replacement speakers.

A-Pillar

1" Speaker — Diamond Audio

1" (25mm) Add-on Aluminum Dome Tweeter Kit with Crossover - DESTAK 1" (25mm) Add-on Aluminum Dome Tweeter Kit ... $109.99 Shop This Fit

Center Dash

4" Speaker — Diamond Audio

4" DMDX Series 2-Way Concentric Coaxial Speakers - DMDX4 4" DMDX Series 2-Way Concentric Coaxial Spe... $109.99 Shop This Fit

Dashboard

1" Speaker — Diamond Audio

1" (25mm) Add-on Aluminum Dome Tweeter Kit with Crossover - DESTAK 1" (25mm) Add-on Aluminum Dome Tweeter Kit ... $109.99 Shop This Fit

Front Door Panel

4" Speaker — Diamond Audio

4" DMDX Series 2-Way Concentric Coaxial Speakers - DMDX4 4" DMDX Series 2-Way Concentric Coaxial Spe... $109.99 Shop This Fit

Front Door Panel

4"x6" Speaker — Diamond Audio

4"x 6" DMDX Series 2-Way Concentric Coaxial Speakers - DMDX46 4"x 6" DMDX Series 2-Way Concentric Coaxial... $109.99 Shop This Fit

Front Door Panel

6.5" Speaker — Diamond Audio

6.5“ 2-Way Coaxial Speaker with 25mm Aluminum Dome Tweeter - DES652 6.5“ 2-Way Coaxial Speaker with 25mm Alumin... $229.99 Shop This Fit

Other

2.5" Speaker — Diamond Audio

2.5" DMDX Series 2-Way Full Range Speakers - DMDX25 2.5" DMDX Series 2-Way Full Range Speakers ... $69.99 Shop This Fit

Rear Deck Lid

4" Speaker — Diamond Audio

4" DMDX Series 2-Way Concentric Coaxial Speakers - DMDX4 4" DMDX Series 2-Way Concentric Coaxial Spe... $109.99 Shop This Fit

Rear Door Panel

1" Speaker — Diamond Audio

1" (25mm) Add-on Aluminum Dome Tweeter Kit with Crossover - DESTAK 1" (25mm) Add-on Aluminum Dome Tweeter Kit ... $109.99 Shop This Fit

Rear Door Panel

6.5" Speaker — Diamond Audio

6.5“ 2-Way Coaxial Speaker with 25mm Aluminum Dome Tweeter - DES652 6.5“ 2-Way Coaxial Speaker with 25mm Alumin... $229.99 Shop This Fit
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