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Radio Installation Products
Audi A4/S4 1998-2001


Compatible Cars

A4/S4 1998-1999
A4/S4 2000-2001

*See the bottom if this page for installation and radio removal videos.

Radio Wiring Harness

Our harnesses include our HIO box.  Not only does the box make everything sound better it also prevents almost all engine noise and turn on and off pop.

If your car does not have steering wheel controls use this harness.

If your car has steering wheel controls use this harness.
You will also need the steering wheel control programmer to tell the main harness what radio brand you are installing.

Radio Wiring Harness if you are using aftermarket amplifiers.

These harnesses will not play audio if you are not using aftermarket amplifiers.

Call for info

Plug and Play Converter

The harnesses above have an ISO connector instead of bare wires on the end of them.  Some radios may have this connection but most will not.  This part will connect between the harness above and your radio so you can install without cutting a single wire.
-Even if we do not have a converter for your radio we recommend you get the universal PNP-UNI so the harness above remains uncut..


Radio Mounting Kit

This part fills the empty space to the left and right when installing an aftermarket radio.
Currently we only have one for the 2000-2001.  If you own a 1998-1999 we have a few single din kits that should work if you can stop by for a test fit.

AM/FM Antenna adapter

The factory antenna in your car is not the same shape as your aftermarket radio.  This adapter convert the shape and power the factory antenna booster.  Even if you car has 2 antenna wires there are no adapters that use both.  We made one and it didn’t improve reception.

Factory Fit Microphone

If your car has a factory mic in the overhead panel you can use this mic instead of the one that came with your radio.  Since its hidden in the factory location not only does it sound better but it looks better too.

Radio Removal Keys

These are the keys needed to remove your radio.  Your car needs 2 keys but other cars need 4 just in case you want to order a couple more.

Panel Pry Tools

These tools come in handy when removing the cars interior trim.



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