80 series sahara console fridge

Hi all,
I have an issue with the factory ice/cooler centre console fridge in my 80 series sahara, that I'd be very much appreciative if anyone could help me out with.

I'll start with the embarrassing bit first.

Bought a new starter battery and after chucking it in and throwing the terminals on (while talking on the phone) I realised I'd bought the wrong battery, terminals opposite ?? large puff of smoke and some filthy words at myself followed!!!

Result, blown fusible link, 12 blown blade type fuses and a lot of reassuring words about how dumb I was from the wife.

Got everything fixed except the factory console fridge. Lights come on when buttons are pressed but no fan or anything. All the a/c's work front and back and the rear heater relay works. I'm thinking it's the amplifier but can't find out any info on them or how to test them, even repair manuals are very basic in information about them. Can't even find a replacement on ebay or such.

Any help or direction to head in would be greatly appreciated from anyone, after you stop laughing at my stupidity that is haha...