Metra Electronics - 99-9107B - Audi A4/RS4/S4 2002-2008 (with Symphony or NAV radio) subwoofer Variable 12dB crossovers provides control

Variable 12dB crossovers provides control to dial in perfect sound

This 8-inch loudspeaker comes in 4-ohm and 8-ohm impedance ensuring compatibility with a wide range of audio systems

the CB653 is designed to deliver dependable results that you can hear

The XD000527 is car audio wire built to carry clean power for car audio systems

Mount it securely so it cannot shift

Metra Electronics - 99-9107B - Audi A4/RS4/S4 2002-2008 (with Symphony or NAV radio) subwoofer Variable 12dB crossovers provides controlThis stereo installation kit has been engineered to help you install either a 2 tall (Single DIN) or a 4 tall (Double DIN) aftermarket radio into the original vehicle dashboard. This dash kit makes radio replacement simple and comes with a pocket that is installed below the 2 radio to fill the extra space in the radio opening, which can be used for storage. The pocket is not needed when installing a 4 tall radio. The dash kit is painted scratch