My father in law just bought a 2016 Journey and wants to have Sat radio. (I spoiled him loaning him my car for the past week) He has the 4.3 radio and I know I need to upgrade to the 4.3s and add the Satellite antenna, after reading a little from a thread last year I need a REB unit to get the Satellite but is this just the middle unit of the stack or all three (Upper, middle and lower?) I am pretty sure I just need to replace the middle unit but I want to verify?
Thanks.