hello all, new to the site. My wife and I just bought a malibu a month ago. We think we have the 1LT but it does not have onstar or bluetooth... however we have the button on the steering wheel and the microphone above. what would it take to have the bluetooth setup? im sure we can go aftermarket but those buttons likely will not work nor the microphone. We were thinking if I get the stereo from the 2LT and swap it out we would have the bluetooth. does anyone here know much about this?