Living Long Term With Arby - Replacing The XM Radio Module November 17, 2012, 12:25:19 am Yahoo Message Number: 135173Hopefully you'll never have to do this nasty little task but knowing where to look and how to get there can't hurt. Here's the direct link to the details: http://flic.kr/p/dtXPbJ CAUTION: This process involves removing and re-installing the E450's engine cover (doghouse). Getting it out can be aggravating. Not putting it back correctly can KILL! Anytime you re-install the cover, You must be sure that none of the factory shag carpeting interferes with the doghouse seal's contact with the engine well edges. Carbon monoxide in the cab of a moving vehicle is really not a good idea.Thanks for visiting, George