Just wanted to share the before and after pics after I followed the guide on here, worked brilliantly as you can see

Before


After

icleaned mine the otherweek,
they go milky after a year or so.

Milky is UV damage degrading the plastic surface, hence a good sanding and your off again

You need to stick a decent quality UV protect on the lights to stop the milky re-occouring

I must admit - see how good yours were compared to mine to start with and the end result.... i need to get my backside into gear! FAST!

Ziggy