My experience was very positive. When I installed my REN I got off ebay, I simply called Sirius while sitting in the car. They talked me through getting the radio's ID, and as I watched they activated it and downloaded whatever it is they do. They then took the old radio off my account. She even waived the fee. All took about 10 minutes and I was set. Brilliant!
2009 Sahara, Red Rock, auto, MyGig REN, Trac-Lok, remote start, soft top, Nuvi 765T, Escort X50 Blue, Cobra 29WXNW, Firestick II, Recovery Kit, Bestop Bikini Top, Soft Top Cover, Jeep Hood Bra