New 1500 owner here that learned the hard way the XM shark fin antenna is about 3" higher than the roofline. Drove under a carport and completely crushed the antenna and snapped it off the vehicle. I purchased the new OEM part for about $100 and now looking for any insight on here as to the steps to replace. I've seen a post or two from earlier model Rams that say the headliner needs to be pulled down, etc.... Trying to determine if this is something I can do myself. Dealer quoted 4-6 hours of labor at $120/hr just to snap in a couple of wires and attach to the roof.