Anyone know which bcm wire it is for

[Power ut]

Canbus power to illuminate heater pannel
I assume it’s a grey blue stripe but but on the bcm there’s a few of them some say input others say output

 

[Dellmassive]

grey blue wire,

you can pick it up from the rear of the light switch . . .

• Cab Ambient Lighting (factory Mod) -- How I Done It --
• Cab Ambient "mood Lighting" Under-dash -- How I Done It --

 

[Power ut]

grey blue wire,

you can pick it up from the rear of the light switch . . .

• Cab Ambient Lighting (factory Mod) -- How I Done It --
• Cab Ambient "mood Lighting" Under-dash -- How I Done It --

Has to be on t5.1 bcm. As my lights / wipers run on old 06 bcm ( as t5.1 lights power up three canbus wasn’t sure which wire is needed from bcm