How do you trade between Pokemon yellow and crystal with two gameboy advance sp meaning what cable do you use and links to pictures would be appreciated aswell?

in the GameBoy, there is a slot in the side where it says link cable. that's the port to place the link cable.

yes

yes

Unfortunately, you need to use two GameBoy Colors with the GBC link cable. The GameBoy Advance connects at a different frequency than Gameboy Color games can receive.

No, the Gameboy Micro does not have a port for the link cable, or GBA wireless adaptor.