[viper001]

I have a new-to-me 05 Touring which we are loving. I have searched the owner's manual and these forums and I can't find this answer. The backup camera lens appears to have a semi-circle coating of something on the upper half of the lens, it is causing a fuzziness on the outer corners of the display image on the screen. I have cleaned the lens and that doesn't seem to be coming off easily. Before I go nuts on it I want to make sure that isn't something that is on there to provide sunlight glare protection, etc. If it isn't supposed to be there, can I ask if the lens is plastic or glass, and what you guys would recommend for cleaning off this mystery grunge.

Thanks!
Kyle