I need some help on exactly how to change over from a dsp5 hardwire to edge cts. I have read the" DSP2 & DSP5 custom operating system tutorial" and I just don't quite get it. I have had a dsp5 hardwired in to my truck for a while and just recently bought the cts ( part # 83830 ) for the monitoring capabilities. I would now like to use it as my switching tunes. I can't believe that I would have to go through all those steps just to change this operation. If I understand some of the other threads I have read, all I really have to do is go into the A0146 and change from hardwired to serialdata, save it to the V2 and load the change into the ecm. Is this correct? If so, how do I do this exactly? It's because this I am going to efi live classes this month. I am an old school mechanic who understands everything from building engines to blower setups, but when it came to the ecm era I became and idiot. Thank you to everyone who chimes in and helps a antique of a mechanic with this problem.