Ok I already have Sirius built in to my car and have my subscription already.
How would I be able to control it with Road Runner?
Your sirius could be built into the headunit, making it almost impossible, with out significant effort and expertise, to control with your PC, or it is an external unit. If external, you might be able to disconnect it from your radio, and try controlling it with the PC. It MIGHT be a device that already has been PC controlled.
You could possibly use a relay control board, adn solder to your head units buttons, and control it that way.
Or, it's probably easier to transfer the subscription to another device easily controlled by the PC.
...I love the French language...especially to curse with...Nom de Dieu de putain de bordel de merde de saloperies de connards d'enculés de ta mère. You see, it's like wiping your *** with silk, I love it.