753g aux bypass for bad computer

[Rumrunner439]

Ok so my computer has issues and I want to bypass the computer for the aux so I can use my grapple. I know a guy did it but I can't find his posts anymore and he was going to send pics of what he did but he said his wifes car was in the garage and there was snow outside. This was last year now I'm back working on it trying to finish my project. Has anyone here done the bypass? It runs perfect but I have to jump the starter to get it to run. I bypassed the brake lock and boom and bucket tilt is working but no aux.
Thanks in advance.