i saw a guy out on the river last weekend in his pontoon boat that said mercruiser service so i gave him a call. he says he does have the mefi-4 software stuff for my 05 excalibur. he said it would be 75$ to come to my house and hook it up, then $40 an hour for service. i know i'll let him read codes, but 40 just sounds scary to me considering usually its 90-100 an hour, and the name of the business is rather odd.