I bought an aux lead off eBay and tried to fit it tonight, my car has a completely different plug on the back to the ones shown on the forum, mine has two plugs side by side, now brown and one black with nowhere to swap out the plug for the new one ?
I did manage to get the fan working on all speeds though ?
Any thoughts on the aux lead anyone?

Can you upload a picture ?

I didn't take one whilst it was out, I'll try and take a pic later