Linking links from 'More Information' Box on left..

Alright, I have changed the name of teh More Information box on teh left, changed the name of the links, but how do I change the destination of those links?

What I want to do is create a 'invisible' category on my website, but link one of those links to that category.

ie: Car parts website, my categories are honda, acura, toyota, nissan, etc.

In my "other information" box, I have 3 links: Audio/Video, Wheels/Tires, and Other.

I want to link Audo/Video and wheels/tires, to a whole different category (dont want this to be included in the above honda, etc categories..

Hope I am not confusing anyone.. lol
PS: To make an "invisible" category, I apply sort order "-1" "-3" etc am I right?

Thanks a bunch guys, I appreciate all the help from the zen forums.

-AJ