Gmc 2024 Sierra 2024 Sound System Upgrades &Amp; Upgrades. Add an amp, upgrade the door speakers, add a small 8 inch subwoofer under one of the seats or behind the rear seat. A quality subwoofer will give realism and an.

The most i’ve done is replace head. Having just finished my build (for now, at least, y’all know it never truly ends!), i can say, without a doubt, getting rid of the bose amp is the best way to go at a gm bose system.