That's the way it works behind fairings. Only a few have been surprised with having ears or something hidden behind the fairing. So hit up ebay and find some ears, headlights and turn signals for which ever bike you have. Since this forum involves about 10 motorcycle variations it becomes a trick even trying to guess what you need.
The 78 cx500 had a nacelle and turn signals, The 79-82 variations of custom and deluxe used ears that slide over the forks. The cx650 has a bolt on ear to the triple tree. The gl's have a wire frame holder with bolt on brackets for turn signals and the list goes on.
Headlight ears and turn signals in good condition are often a pain to find, at least they wre when I was looking for replacement for mine that once had a fairing on it but had been removed and the lamp assembly rigged back on there.
The Vetter bulb and housing were attached with some universal ones you can get from J.C. Whitney.