Just to bump this up, cracking thread this.
my rear demister & heaters were actually dead aswel, don't think I checked them before I just assumed as I thought they were blowing on the way to work.
I found the brown connection block & as a test I rounded the circuit off with a 10p piece, started the car and boom PAS/heaters & demister all back on, going to go down maplins shortly to get some wire/terminals to do it properly.
Thanks rep!
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