dash lights

Right as most most I've fitted a t6 dash / heater box and heater dails .in my old t5 . But can any help . how I wire up for illumation lights off the heater panel. I assumed it was grey blue stripe to power but nothing . Not sure if I'm missing a power or earth . Etc heater flaps work . But...

Hi, the dash lights just stoped working and van starts but will not run, think its the fuse, but where is it please?

Apologies if this has been discussed previously but as a newbee to the site i'm not sure. My 16 plate Kombi has a problem with the dash display sometimes illuminating / sometimes not. Only happens when side/mainlights are switched off. Dealer was suitably vague...ideas? Also, the halogen drl's...