Hello, I recently found that the light ring of the cigarette lighter’s socket is not (more) lit. To solve the problem, I would like to expand the socket. How can I expand it exactly? Is the light ring illuminated by an incandescent lamp in my ’88 Ford Scorpio? If so, does someone have the exact specification at hand? Or does the whole light ring have to be replaced? Speaking of: I checked the appropriate fuse and electricity arrives. Thank you in advance.