Have an "07 3500 LT3 "Classic" on order....navigation system wanted but not offered as an option. I understand that Delphi has a OEM system that will fit...can anyone advise??:confused: Thanks

you can buy what you need much less expensive than the Delphi aftermarket on Ebay from people on this board. Just need to decide if you want to change the amplifier as well. It's an easy upgrade, check out the do it your self section for the post on Nav/Lux upgrade - the whole shebang.