I have the 10.4, 7,1 N in my Ram. I love it but (yes there is always a but) I do have a question. I have a large external hard drive (5TB) that I want to use for storage. Does it have to be formated to fat32 or can it remain NTFS? The reason I ask is I have a TON of music and movies on there there that I want to use in the truck when driving cross country. Thanks in advance.