I am fairly new to the Duramax and EFI Live, I own an express 3500 with the LMM and just purchased an autocal with full tunes and DSP5 switch which I installed everything and the van wouldn't even crank over, no shift indicator, so the tuner had me send him the stock file which he resent a single tune to load in and up and running we went. My question is and Ive search quite a but but most everything out there is from around a year ago, has there been any updates to the Live that support the switch with the van OS? I also saw someone had posted just moving some of the pins in the connector works. All and any help is greatly appreciated as I was so looking forward to having the switch option. Thanks