Hello Purchased a Mygig system because my REC did the old famous No navi, no spotify, make Slater something something. So after reading many post on here I set out on my adventure and purchased what I was told is a REN with a GPS antenna as the RER are like $800 and up. But now that I look at...

I own a 2005 Chrysler 300C with a REC Radio/Navigation unit in it which has AM/FM, 6CD, navigation, U-connect and SIRIUS radio. I am replacing it with a newer RER touchscreen navigation unit (I am using an after-market lockpick adapter unit which will allow the conversion). My problem/question...