Hello fellow Audi owner. I own an Audi A4 avant, and have recently completed my carputer install. Here is what I did:Originally Posted by ericdee
Removed bose deck
Installed amps, and new speakers.
Purchased an Opus 150watt atx power supply.
Installed via m1000 motherboard with sound card attached to Opus
The opus powers my carputer. The purpose of an Opus is to convert non-regulated 12V from the car, to useable regulated ATX (12v/5v). When I turn the key on in my car, the accessory lead awakes the opus which then presses the atx button on the m1000 motherboard. Then when I turn the key off, the Opus presses the ATX power button again, simulating someone pressing the button physically (there's a little wire which goes from the opus to the power button on the motherboard).
The computer then powers an Extigy, which runs optical out to an Alpine PXA-h510, which then goes analog rca to the amps, and then to the speakers.
Pics are here: http://www.dictos.com/shares/pictures/audi/stereo