Killakawi450

I just ordered the complete system amp and sub for my 2014 Silverado crew cab LT. I have the 8 inch screen but I do not think I have Bose speakers? Definitely did not have a sub. Is there a way to tell if mine has the Bose system? Anyway, I just tried to install this tonight. It got dark in about an hour so I did not get it completely done, but I hooked everything up real quick just to hear it and nothing is working??? I double checked the connections and the fuses and everything seems good. I am hoping this system does not only work with the smaller screen stereos? Anyone know if this works with the 8 inch screen for sure? Any ideas why it would not be working? I was thinking maybe it is not grounded good enough? I did put the grounds where the instructions said to. Thanks for your help!