How do you replace the front right turn signal bulb? Cant get to the back of the on 1995 Volkswagen EuroVan

The left signals work. The rights dont. I have checked the right rear bulb. I cant figure out how to get to the back of the front right fixture to check that bulb. How do I get there from here? and is it possibly something else?

Asked by for the 1995 Volkswagen EuroVan