Transit/tourneo custom - rear speakers /fade activation

[Jonalderson]

Hello, I’m wanting to activate rear speakers in my van I can access 1x ACM MODULE 727-01-01

it has 1x string that I can edit.

I’ve looked around and think it’s the xx*x that I need to edit would I be right in thinking 0 is correct for front internal amp and rear internal amp

Or am I completely wrong - should I have 2 additional strings to edit?