AUX Audio input Help
(For Lexus RX300 from 1997-2003)
1. How to install an auxiliary input so you can play your IPOD/MP3 player or XFM.
This installation will allow you to control the audio using the Lexus factory radio. So yes, you can adjust the volume, left/right, front/back, bass/mid/treble, and keep all the features it already had.