2009 Audi A4 stereo and speaker fit
Fit for the 2009 Audi A4 depends on the trim; the table below shows what we have verified for each. DJ Custom Audio in South Gate stocks stereos and speakers that fit and installs them in its own bay, often the same day.
What fits the 2009 Audi A4
| Trim / body | Dash opening | Front doors | Rear doors | Rear side panels |
|---|---|---|---|---|
| Sedan | Factory radio can't be swapped for a standard aftermarket stereo ✓ Verified | 6.5" or 6-3/4" ✓ Verified | 6.5" or 6-3/4" ✓ Verified | – |
| Convertible | Double DIN or single DIN ✓ Verified | Confirm at the shop | – | 6.5" or 6-3/4" ✓ Verified |
Install notes for the 2009 Audi A4
- Dash kit and wiring: Metra 99-9107B (double DIN or single DIN); amplified factory systems: Metra lists AXDI-A12 or AXTC-A12; non-amplified systems: Metra lists AXDI-A12.
- Some trims have factory Bang & Olufsen and Bose premium sound, which can wire differently; Tony checks your trim before you buy.
- Front doors, rear doors and rear side panels take 6.5" or 6-3/4" speakers, and we stock both sizes.
- Confirmed for some trims only: front doors. The other trims say "Confirm at the shop".
- Fit changes by trim (Sedan; Convertible), so pick your trim in Shop by vehicle.
Local pickup and install in South Gate
Everything is picked up at the shop, Cash & Carry: 8696 Atlantic Ave, South Gate. Buy Now, Pay Later with the Payment Plan (Snap, EasyPay, Synchrony, American First). Approval and terms set by the provider.
Sizes marked "Confirm at the shop" are ones our sources do not agree on yet, or that change by trim or premium audio. Tony checks before you buy. Fit data checked against Metra dash kit and speaker guides and Alpine vehicle fitment data and Crutchfield vehicle research.
Speaker upgrade
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2009 Audi A4 stereo and speaker fit: questions
Does the 2009 Audi A4 have a premium sound system?
Some trims have factory Bang & Olufsen and Bose premium sound, which can wire differently. Tony checks your trim before you buy.
Are all the speaker sizes for the 2009 Audi A4 confirmed?
Not yet: front doors still say "Confirm at the shop". Text (213) 674-9042 with your trim and Tony will check.
Can DJ Custom Audio install it?
Yes. Bring the 2009 Audi A4 to 8696 Atlantic Ave, South Gate. Tony confirms the trim and installs in our own bay, often the same day. Text (213) 674-9042 or call (323) 944-7844.