I have an 04 TSX w/ the original Navi DVD. A friend of mine has an 04 TSX and just got the newest Navi DVD he ordered online.

I remember reading on here some time ago that if you load the new Navi DVD you'll get all the GUI changes and firmware update. Last Sat I loaded his Navi DVD into my car. I then put my Navi DVD back into the drive and I see the new GUI.

I start driving home and noticed ALL streets except for freeways and highways were "Unnamed Street". I ejected my Navi DVD, popped it back it. Same thing.
I found a thread on here that said to go to the diagnostic menu and play around w/ it. I did and saw the "Load Disc" option. I got the street names back, along w/ the old GUI (because the old Navi DVD is all I have)

I really like the new GUI and firmware of the new Navi DVD, but I cant justify spending $150+ on the a new Navi DVD when streets I normally drive on hasnt changed.

Here is my question:
I am seeing my buddy this Sat again. If this time, I load his Navi DVD, and load it again through the diagnostics screen, will all the street names show in my Navi as well as the new GUI?