Phil Dorsett's 2001 Audi S4
Items installed:
- SIRIUS Sportster 4 (hard wired)
- SIRIUS FM modulator
- SIRIUS dot antenna
- Alpine MRP-M450 mono amplifier 400watts x 1 at 2 ohms
- Alpine IVA-C800 reciever
- Alpine CHA-1214 12-disk CD changer
- Alpine Type R 12" subwoofer dual voice coil running at 2 ohms
- Rockford Fosgate digital 1 farad capacitor
- Rockford Fosgate 800 watt 4 gauge amplifier kit
- Audi amp integration harness
- 40vVW-53 Audi/VW antenna adaptor
- custom dash (mdf painted)
- custom amplifier racks (mdf w/ carpet cover)
- Passport 8500 X50 radar detector (hard wired)
Installation Description
A pretty fun project. I made the dash kit from mdf since there isn't one available for a 2001 S4. I also wanted to keep the amp out of the way so I fabricated a top-mounted amp rack in the trunk; so far no problems with heat dissipation.
Q&A Section
Why did you decide to upgrade your A/V system?
I wanted better sound, and a better look.
What's the first thing you show people about your installation?
The custom dash.
Why did you choose these products?
I like Alpine's line of products.
What was the most difficult part of the installation?
Securing the amp rack to rear deck, and disassembling the center console to run Alpine wires to the trunk.
What plans, if any, do you have for future upgrades?
A 4-channel amp, new Alpine in-dash DVD player, new door speakers all around, a Bluetooth kit, and a power inverter.

Screen out and SIRIUS on, with a dock I made for the Sportster to sit in.

The dock I made for the Sportster.

custom ported box I made for the alpine 12" type r woofer

The Alpine head unit with the screen retracted.

The custom amp rack mounted on the bottom of the rear deck.

SIRIUS antenna mounted on trunk lid.

The ride.

The proud owner.
Terry Zarowny from Any town, USA
Posted on 3/22/2022
What did you use to replace the door speakers ?
Jim Stock from Shawano
Posted on 12/15/2020
Nice job bud
BRIAN BLICKENSTAFF from PASADENA
Posted on 8/13/2019
Good looking car bro. Nice setup inside. Welcome to the S4 family!