gameshark codes for final fantasy IV advance please

luneth

I've been looking forever for codes for final IV advance that can give me a dark knight Cecil and young rydia to replace Palom and Porom, but I can never find any for gameshark or codebreaker. I need codes for this specific reason and I don't want the kinds you can get on any website or any that you have to use the search engine on the vba(since it never works). If anyone can post some codes or or post sites that have the codes on them, I'd really appreciate it.