Yes.
you can't a GBA link cable can't connect to a DS.
To connect a Game Boy Advance (GBA) link cable to a Nintendo DS, you need to use the DS's GBA slot, which is located on the bottom of the device. Simply insert the link cable's connector into the GBA slot, ensuring a secure fit. This allows for gameplay features that utilize the link cable, such as trading Pokémon between compatible games. Note that the Nintendo DS only supports GBA link cables with GBA or GBA-compatible games, not DS games.
The GBA universal link cable is the only way to link two GBA's together, sadly.
Yes.You can connect the GBA to your GameCube with a cable that costs around 6 dollars.
http://www.amazon.com/Game-Boy-Advance-Link-Cable/dp/B00005BOS7
To link Pokémon Colosseum to Pokémon Ruby for battle, you need to use a GameCube with a Game Boy Advance (GBA) link cable. Connect the GBA link cable to the GameCube and insert Pokémon Ruby into the GBA. In Pokémon Colosseum, access the Colosseum Battle Mode and select the option to battle with Pokémon from your Game Boy Advance, allowing you to transfer and battle using your Pokémon from Ruby.
No sorry its a game boy advance you can't just connect it to an older version of game boy that's just dumb
The GBA universal link cable is the standard in linking GBA's together, and it'd be best not to substitute any other cable.
no
Yes. you need a special link cable with one side fitted for colour and the other fitted for the GBA.
GBA cable link
No, the DS cannot be connected to a GBA either by link cable, or by the DS' internal wireless, to a GBA using a GBA wireless adaptor. The only form of linking they can do is to have both the GBA and DS cartridge inserted into the same DS, to use functions like migration in the Pokemon games.