Index of /music (http://www.thetfcog.com/music/)
The file you want to right-click on and download is called 21092010tfcogMUS.zip
There are 13 Spider-Man and his Amazing Friends MP3 cues in that archive, including several great Transformers cues for the Transformers fan in you also. There is actually an MP3 file not labeled as a Spider-Man and His Amazing Friends BONUS track, but was used repeatedly in the show. The song is called "Generic rock-disco theme.mp3". It was used in Transformers, but Amazing Friends fans will recognize it as the music playing at the parties that Peter, Bobby, and Angelica went to in episodes "Triumph of the Green Goblin" and "The Translyvanian Connection", among others.
I hope this fills the huge black hole in your nostalgic animation soundtrack collection from the 1980s like it did mine.
Enjoy!
http://www.cartoonopolis.com/music-library/inhumanoids-music/
https://www.youtube.com/watch?v=Rme4UUexPt4