I don't know how your Keystone Cougar is wired but since my Keystone Passport is made by the same company it may be wired the same as mine.
If you have a SINGLE cable satellite dish (like a Playmaker) and your TT is equipped with a coax jumper box (a single wall plate with two female coax connectors and a very short coax cable connecting the two), disconnect that jumper cable and determine which connector leads to the exterior connector. Connect the Wally coax cable to that connector, the Wally HDMI cable to the tv, and your satellite dish to your outside connector. If you want to reconnect to the park cable, you will have to disconnect the Wally and reinstall the jumper coax before connecting the park cable to your external connector.