Dear Nathan,

1) The Audio is already integrated into our system.

2) With a normal shower size 5 feet X 3 feet` X 7 Feet tall the heat will go up from 70 to 100 degree in 7 , 8 minutes.

The steam generator is like an window air conditioner, the bigger the room the longer you have to wait..

In order to see how to install, please go to our web site -> Tutorial -> Installation Guide.