tim87tr is the way I did mine & it worked for me with no problems.
This weekend I moved the Trans+ into the cabin & still need to reconnect the advance up - I'll connect it at the computer this time.
Be sure you open (disconnect) the orange wire at the battery before starting - hook it back up when finished. I forgot to open the wire when I moved the Trans+ & coded - had to open the wire to reset the ECM.