What is the easiest way to catch an aron in pokemon diamond?

Question

I already know about fuego ironworks, I'm using a PokeRadar, its just not working!?

Answer 1

The obivous is to just try and try again. You will find it about half of the time.

http://pokemondb.net/location/sinnoh-fuego-ironworks

Look here for more info.

Answer 2

When you use your Pokeradar, try going into the patches that short of sparkle white. That gives a better chance for Pokemon that you normally find in there to appear.