Thank you ChevyLife for defending this thread but I will try to explain a little better on why I started this topic so that maybe the trolls will move on to something else.
After seeing the comment I went home and verified on the sticker that it stated exactly the following:
Entertainment
•6-speaker audio system
•Bluetooth for phone, personal cell phone connectivity to vehicle audio system
•Chevrolet MyLink audio system, 8" Diagonal Color Touch with AM/FM/SiriusXM, USB ports auxiliary jack, SD card slot, Bluetooth streaming audio for music and most phones, hands-free smartphone integration, Pandora Internet radio, voice-activated technology for radio and phone (STD)
•OnStar with 4G LTE provides a built-in Wi-Fi hotspot to connect to the internet at 4G LTE speeds (Visit www.onstar.com for vehicle availability, details and system limitations. Services and connectivity may vary by model and conditions. 4G LTE service available in select markets. 4G LTE performance based on industry averages and vehicle systems design. Some services require data plan.)
•Single-slot CD/MP3 player (Replaced by (U42) rear seat DVD/Blu-Ray Entertainment Package when (U42) is ordered.)
•SiriusXM Satellite Radio is standard on nearly all 2015 GM models. Enjoy a 3-month All Access trial subscription with over 150 channels including commercial-free music, plus sports, news and entertainment. Plus you can listen to SiriusXM Internet Radio everywhere on your computer, smartphone or tablet. Welcome to the world of SiriusXM. (IMPORTANT: The SiriusXM Satellite Radio trial package is not provided on vehicles that are ordered for Fleet Daily Rental ("FDR") use. If you decide to continue listening after your trial, the subscription plan you choose will automatically renew and you will be charged according to your chosen payment method at then-current rates. Fees and taxes apply. To cancel you must call us at 1-866-635-2349. See our Customer Agreement for complete terms at www.siriusxm.com. All fees and programming subject to change.)
No where in that description does it mention anything about a sub and it being related to bucket seats. And nowhere else under additional options does it say anything about the sound system. Only thru photos online did I see it had bose speakers.
So when I got in the truck I expected to see something like 4 door speakers, 1 center (possibly in dash) and then a sub under the back seat. But no I counted 4 in the door and 2 on the dash. This lead me to believe that a sub was not included as I have never seen a crew cab truck where the sub wasn't under the back seat but then again this is my first chevy. So after doing some research and with the HELPFULL comments that people have provided on this thread I now feel confident there is a "tiny" little sub under the console.