Damn, I guess there's no way to subscribe to my own posts here, or I'd have seen replies.. anyway, yeah I read the manual but didn't see anything on the SD, only that there was a slot and it played media. I'll try a 128gb and post back if it works. They're only about $120 on Amazon. By the way, anyone having issues with auto play being off through Bluetooth but it still auto playing anyway once the phone's connected? Thanks for the help folks!