Is there a way to access Winamp to turn on/off plugin from MediaCar?

What I like to do is have a plugin that display Lyrics while playing a song, kinda like karaoke. But I would like to have that off when I in GPS or any screen other than MP3 page.

Right now, what I have to do is to get out of MediaCar, start Winamp, then turn on/off the plugin, back to MediaCar to enjoy karaoke.

I have that lyrics window to stay on top all the time, so I have to shift the lyrics window when I use GPS.

I don't know if this possible, but it would be sweet if someone how to get this to work.

Any thought?