I recently purchased a 2013 Jeep Rubicon with a hardtop. My wife and I love it. Within the last couple of days, we have noticed a rattle behind the dash when starting from a complete stop. We have the 5 speed automatic and the 430N GPS. I was thinking that maybe the wiring harness for the 430N needs to be zip tied tighter or something. Anyone having a similar issue or know of a fix? Is this a warranty issue? We have only owned the jeep for two weeks.