2005 package 6 is 2004 package 9. You can verify this by comparing the code letters used to order the vehicles in dealerships. Anyway, it is the fully loaded package with nav and bluetooth, etc.

It has been said:
Hybrid drivers come in 3 flavors, greenie, techie and cheapie. Pick any 2.
2005 Prius, Melinium Silver over gray, package 5 (AI)