2003 RR L322 Rear Lights

Guys I had a spare N/S/R light cluster now I need to put it on but it has been in my shed for 2 years and it has got some mold and condensation inside it, is there anyway of me able to clean it or is it useless?
Thanks
Clint

yu can clean it with any domestic liquid cleaner/mould inhibitor and use a hair dryrer to dry it out afterwards - use a toothbrush thru bulb appertures to clean stubborn bits.

Thanks for the reply
But the marks are on the inside of the light as I did not have the bulb holders in place I think the moisture has gotten inside, now I have had a look and there seems to be no way to get to it?
Cheers

yup - yu said the inside - my comment still applies.

How do I get to it from the rear there is a lens stopping you from getting to the front.
The lens looks like it can be popped out but looks impossible to get back in
Cheers

Use a Metabisulphite solution - available from all good wine making stockists.

Thanks for your replys.
But where the marks and mould are I cannot get to it. Now trying to get to it from the rear where the bulbs are putting in a toothbrush will not allow me to ge to the front of the light where the inserts are as there is a lens in-between stopping this, can the plastic of the front come off or is there something I am missing?
cheers