Sheesh, some people! I'm sorry to hear that sad story Jakka, and for the record, there were no PMs in my inbox (for the best no doubt, it's almost full).
Being back at work this week, there's a lot less time to tinker... But today, without the GTF firmware file, I can say - all the IPC does is pass through 4 extra signals from HS CAN to MS CAN for the
ICC to listen to. The details are in the picture.
I mean, how hard could it be to just edit that "Signal Configuration" to pass through 4 extra signals unmolested? Yeah, working on it... Damn firmware has hard coded address locations in that signal config - so whatever needs to be added can't change any other data's position... SOB.