Pleasure-Way satellite TV ready?

We bought a Pleasure-Way Lexor TS yesterday, and I have a question that applies to it.

The dealer told me that the rig is "ready for satellite TV," and that the installation of a Winegard dish is straightforward. Before I buy a dish to install myself, I wanted to ask if anyone here has done an installation like that, and if so can you tell me if the power and coaxial cables are already pre-installed in the roof of the Lexor?