I'm buying an 08 GXP this weekend and has the Monsoon stereo. When I looked online it looks like there are about 3 different headunits that were used on this generation. My question is I see some with the head unit you'd see in like the 03-07 Silverado, then the nav unit, then of course the one that I have which appears to be the older style headunit.
Help me out here guys. Which headunit has the Monsoon system?
This is the inside of the one I'm buying.