No, there's no Action Relplay codes for the Wii.
Instead, there's a thing called USBGecko than connects the Wii to your computer. Then, go to the WiiRD forums to get codes.
This actually requires some hacking skills, so it might be difficult to do without some help.
There's a YouTube user named GoldieXD that did this. She made her own codes and has a lot of videos of her hacking and game and stuff, although she usually does battle videos.
If you need any additional help, contact Andrew Heo at Facebook.
And please, no n00bish questions.
no
You can't. There are no cheats in Fire Emblem Radiant Dawn.
No, Radiant Dawn is only for the Wii.
No she died in Fire Emblem Path of Radience
in a store...
Yes, there are.
Oliver
I think not.
It already has been.
About 20
No.
As of now, you cannot.