Have a question about installing the wifi module into my truck. Have looked online but can't find answers. I have a 2014 Silverado 1500 LTZ. I found the wifi module online from GM for a hefty $450 or so (probably can find it cheaper else where), but I wanna know, if I buy it, how to install it, and will it work? Would hate to waste the money and it not be compatible. Thanks in advance