M342

Hi First time posting so not sure if Im doing it right. But I have a 2016 Silverado LT I have the red X going through GPS that so many have. So reading all the stories about the water leak that damages the antenna I bought the new shark antenna with the hole in seal facing foward and lower angle ( which by the way I dont see how that helps much seeing how when you drive in the rain you will still get water intrusion ) Anyway I installed it with extra sealant . No rain yet but not worried about that. But I still have the red X on the gps so still not working any ideas ? Thanks in advance for any help.