Welcome!
Ouch! We all feel your pain. Unfortunately, RV's aren't built like autos, and new ones usually have a few issues. Do call Thor and talk with their warranty people. Did the dealer do a Pre-Delivery Inspection with you?
As to the radio, it won't work if the Use/Store button is flipped to off. Wish your other problems were that easy!
Strongly suggest you access Ed Felker's excellent crowd-sourced manual for Vegas/Axis:
http://www.thorforums.com/forums/f10...nual-4961.html