Just remembered. There's a little black box that comes with a satellite radio kit for aftermarket radio! Sorry about that. Without this black box, cant get sat radio.
The antenna on the right you will not need (it'll come with the kit anyhow). Instead, the part I've been talking about will plug into this black tuner box. This avoids having tuck this wire all around the cab and get it to the roof, then having 2 sat radio antennas up there. Essentially, this takes place of the factory silver one you have pictured.