I am just now getting ready to put my comp in my truck, but I have been using Girder for a long time. I think Girder works the same as Ir Assistant. I have it set up so that I can change playlists and utilize it with the Car Mp3 Keyboard Plugin for Winamp (lets me press a button the number of the song and the button again to go strait to a particular song). I also use it to control the DFX plugin and everything else. If you don't have enough buttons on your remote, you can choose one button to switch options.