Where and how do I audition?

You've posted this in the wrong section - I'll move this for you!

So for VAing here, you need a solid home recording setup (which I wouldn't be surprised if you have one already, being a radio person). You'll need to look into all the separate threads posted here and record the given audition lines in the format requested, and send them into the email provided before the deadline passes. If you see a thread without an email address to send to, make sure to ask them to provide it because that's part of the rules here. Try not to bother any threads which seem inactive for more than a few weeks, or if their deadlines have passed. This sounds obvious but some people still do it sometimes.

From there, if you're cast, most of the time you will be given the script which you again record in your home setup in the format requested by the producer. This can vary due to personal preference. Most want lines separate with different takes all in the same file, but some want things to be even more split up by separate takes in separate files and others are fine with you just sending a big single file of all your lines.