I have an ipad mini 1 that I keep wanting to leave plugged into the stereo to use for music but its version of Music is too old to access the copies of my stuff

I have an ipad mini 1 that I keep wanting to leave plugged into the stereo to use for music but its version of Music is too old to access the copies of my stuff in the cloud and trying to update the OS just spins forever. This post made me decide to look into it and discover this is because it was jailbroken, and that blocks Software Update from working, so I've plugged it into the computer and am updating it from there. Dunno if it'll actually end up working, right now I'm doing a backup and iTunes is saying it's "over capacity by 634 MB" and pinwheeling, but at least it's an attempt. edit, an hour later: IT WORKS YAY, thanks for giving me a reason to fool with it.