I have a 2014 Sierra. When I bought the truck it had Sirius xm installed and worked fine. I let the subscription expire. Last week I renewed it, and reception is crap. When I start the truck it takes 10-30 min for it to receive the signal. Once it does receive it, it drops out a lot, even with nothing blocking it. I’m thinking of checking the software to see if it needs updating. Any thoughts out there? Thank you!