DIY: Installing new radio?

I spent some time searching through the sticky and using the search button, maybe the wording I used wasn't specific enough but is there a DIY thread on installing a radio?

My aftermarket radio decided to stop working and now I'm looking to pick-up another but before I do, I just want to see what's involved in getting the old one out.

I'm trying to avoid breaking anything.

Thanks in advance for any help.