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Car Audio Gear for the Audi S4

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Tell us more about your Audi and we'll show you a shopping homepage, customized for your S4.
New to Crutchfield?
With most car A/V orders, you’ll get:
  • FREE step-by-step instructions on installing your car stereo and speakers
  • FREE mounting kit and other basic installation accessories
Plus, we offer FREE lifetime tech support 7 days a week, so you can get help on weekends.

Here are stereos and speakers our customers have chosen for the S4

Top sellers for the 2005 — 2008 Audi S4:
In-dash stereo
Alpine INE-S920HD Alpine INE-S920HDNavigation receiver
21 people say :
Price:
$799.99
Front Door speakers
Pioneer TS-G1644R Pioneer TS-G1644R6-1/2" 2-way car speakers — for 6-1/2" and 6-3/4" openings
110 people say :
Price:
$49.99
Rear Door speakers
Pioneer TS-G1644R Pioneer TS-G1644R6-1/2" 2-way car speakers — for 6-1/2" and 6-3/4" openings
110 people say :
Price:
$49.99
Top sellers for the 2004 Audi S4:
In-dash stereo
Kenwood DDX470 Kenwood DDX470DVD receiver
21 people say :
Price:
$349.99

How other customers have customized the Audi S4:

Installing it yourself?
Since 1974, we've helped generations of Americans install audio systems in their cars. If you're doing it yourself, we're here to help you plan and install your system. Here's what makes us a little different.
Outfit My Car
outfit my car
We have the world's largest car fit database with over 16,000 vehicles. Identify your car and create a shopping homepage of car audio and video products that fit your car.
Installation
A Crutchfield MasterSheet is a step-by-step installation guide for your specific vehicle. With most orders, we include a MasterSheet, along with the dash kit and wiring harness you'll need – all free.
Watch this video on how we create a MasterSheet™.
Tech Support
Run into a little problem? Our Techs are here 7 days a week to guide you through rough spots in the installation and help diagnose problems.
Information
We offer helpful articles and videos with the information you need to make good buying decisions.
Watch this video on installing a car stereo.