The Ranma 1/2 videos from Hot Songs Contest
http://www.perumanga.com/forum/ranma-music-videos-t-7236.html
(I don't know about on your setup, but after I play one, I have to refresh to be able to play the next one.)
I think I bought this on laser disc at Wondercon in 1991.
"I Hate You" by Edge of Etiquette, the song played by the punk on the bus, which was recorded by the same actor, who made up the song and band name just for Star Trek IV. He was also an associate producer of that movie.
Story: http://bareboneshardcore.blogspot.com/2006/01/hardcore-archeology-edge-of-etiquette.html
Streaming audio:
http://www.imeem.com/people/m4Vo98/music/9FjohlWQ/edge_of_etiquette_i_hate_you/
(I've been looking for the full song for a long time.)