I just order a Trailblazer LT with out the Bose. Not because i didn't want it just didn't want fake leather seats lol.
It would be nice too see how many none Bose systems have that speaker
So I went to my local dealership and looked at a LT with no options.
When I looked under the spare what to my surprise, There is a little speaker!
So it's safe to say they all come with the little speaker under the spare tire.
I have installed a sub also. Ran power from the fuse box at the rear. Did not disconnect the ANC and all work great. There is a very slight low hum when the Volume is turned right down.
