Posted this on another part of the forum but I think it may have been overlooked as I only got one reply or maybe this is an odd issue. lol Either way maybe somebody can help me out with this.

Just curious if anyone has had an issue with the radio on their Silverado or Sierra. At start up on a cold day I barely get any stations in clearly minus local stations. Once the truck is warmed it it seems to go away. Has anyone else ever had this issue? It's kinda annoying. I took it into the dealership and they replaced the antenna base but it hasn't helped.