I have a 2006 Larson 248 LXI that I bought new from the dealer in 2006 in order to avoid the hassles of dealing with repairing a used boat. Little did I know that I'd end up with a Volvo 5.0 GXI (serial #4012173260) that has a penchant for blowing ECMs. (Volvo part #3863330) 1st time was...