Does the hot lead on a 2001 audi a4 symphony radio have a fuse?

If it's stock it should get its circuit protection from a fuse in the fuse panel.I have the schematics, but I need to know, w/ or w/out Avant, w/ or w/out CD Changer. I have 4 options.
Bose, w/out Avant, Bose w/ Avant, w/ CD changer w/out Avant, w/ CD Changer w/out Avant.

Thanks for getting back to me. The radio is not a Bose but has a CD changer.I was able to find the Fuse but my problem is that I have 3 different color coded wiring diagrams. What ever you can do to Help would be appreciated.

2 options.