Ignition ring and cap

[rddaves54]

I was wondering how the Ignition Bezel Ring and the Ignition Bezel Spacer are to go together when the little cap keeps the ring from slipping over the ignition switch. Do you put the little cap on last? Do I take the cap off the ignition and then how does it go back on?

I have picture of ring and the little cap that came off old ignition.

Also I put a new steering wheel on and it was a little rusty I cleaned it with a wire brush and sandpaper that should be alright. I was wondering if that would make the horn not work if the connection is bad.