2015 Silverado ltz Bose

[Frank Valenti]

Good day. 2015 Silverado ltz. My front door speakers have only base. No midrange or highs. I pulled the door apart and tried an aftermarket speaker to see if it was the speakers. Same thing, only base nothing else. The dash speakers and rear door speakers work fine. I pulled the plugs out of the amp and cleaned them and put it back together with no change. It’s an all stock Bose system. I don’t know what to do at this point. I bought the truck a year ago and everything worked fine. It stoped working shortly after I bought the truck. Any advice would be greatly appreciated. Thank you.