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. Audio MotorSports in Carson stocks stereos and speakers that fit and installs them in its own bay, often the same day.

What fits the 2009 Audi A4

Trim / bodyDash openingFront doorsRear doorsRear side panels
SedanFactory radio can't be swapped for a standard aftermarket stereo ✓ Verified6.5" or 6-3/4" ✓ Verified6.5" or 6-3/4" ✓ Verified–
ConvertibleDouble DIN or single DIN ✓ VerifiedConfirm at the shop–6.5" or 6-3/4" ✓ Verified

Shop parts that fit Text us your car

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; we check 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 Carson

In-store pickup at 22025 S Avalon Blvd Ste A, Carson. Paid at the shop. Buy now, pay later with the Payment Plan (Synchrony, Zelle, Venmo, PayPal, crypto, credit cards over the phone).

Sizes marked "Confirm at the shop" are ones our sources do not agree on yet, or that change by trim or premium audio. We confirm before you buy. Fit data checked against Metra dash kit and speaker guides and published vehicle fitment data and Crutchfield vehicle research.

Speaker upgrade

A4 speaker upgrade guide, every year

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. We check 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 us with your trim and we will check.

Can we install it?

Yes. Bring the 2009 Audi A4 to 22025 S Avalon Blvd Ste A, Carson. We confirm the trim and install in our own bay, often the same day. Text or call us.

In the shop

Works in any car: line output, amps and subs

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