Gmos-02????

HI, I have a stock 07 suburban. I want to simply change the head unit and panel speakers. I Have already purchased those. My question is regarding the GMOS interface. I am still getting conflicting info on the one I need. I do not have the Bose system in my vehicle.I ordered the GMOS-02 for amplified systems. Will this work properly? I plan on upgrading and adding subs and amp...but for now I only want the head unit and panel speakers.