Let Me Navigate To The End Of My Sentence, Please

I’m at the parts and service desk at an auto dealership that services my make of car.

Me: “The navigator in—”

Clerk: *Interrupting* “Sir, if you need help with your navigator, you’ll have to contact whoever made it. We only service the factory-installed navigators.”

Me: “Allow me to clarify what I was saying before you interrupted. The factory-installed navigator in my car needs to be updated.”

I guess the dealership gets a lot of folks wanting them to update after-market navigators. Sadly, the process to update the factory navigator is neither easy nor cheap. I now have two cars with expensive but useless built-in navigators.