Nah, they run a school like Installer institute.
there are a few courses at each school depending on the area you want to go into.
Like apholstery, body work, electronics, fabrication, box design.
Thing is, once you get a job, it'll be different. I have been installing for 13 years or so and rarely use what I learned in school, I only get to use those skills for my own projects.
This wont be the case if you can get a job in a high end full service custom shop. But thats hard since they usually want multi years of experience with little pay.