Hi, Im going to attempt to do this to my VW golf MK4 lights. I bought some blue neon halo rings and want to fit them. It says on the instructions to get open the headlight i can place it in the oven (also like some of you said) it does not say about turning the oven off though whilst its in there. Will the plastic not start to melt if i leave it in there whilst on ??? Have any of you tried it with a vw golf headlight before??