When we bought a Class C in 2007, it came with a free year of Sirius XM. We never listen to the radio. We turned it on once or twice to see if it worked, and it did. We turned it off and didn't turn it back on for 2 or 3 years. It still worked. After that, every time we got in the RV, we would turn it on just to see if it still worked. We traded in the Class C last April, and the Sirius XM was still working. That is 10 years later.
I am sure that whoever buys that RV will think we are still paying the bill without knowing it.
We have bought a new TT and Ford pickup truck. The truck came with 6 months of free Sirius XM. It works, I tried it. In 2 or 3 years, I will turn it back on to see if it is still working.