do I need the entire thing or just part of it behind steering wheel?

there is one a yard but no key. I may have shot at another one but dont recall if it had key .

my ignition is messing up and I have to giggle key to get headlights and turn signals to come on. also noticed the radio sometimes doesnt come on. I giggle key and it all works.

my key reminder suddenly wouldnt stop so I had to pull the fuse .

I just need to know what I need to get or not get.

 

Just the innermost part. Look it up on the IPD site and get the part that looks like it. But I would just buy new because they go bad often and you don't know how much time the salvaged part has left.