[dennis111]

In 1972 I bought my first Mustang and replaced the under-dash courtesy light fixtures with a similar pair of these blue marker lights (bought from Western Auto):

I liked the dimmer colored lights so much, when that car succumbed to Pa rust they were removed and installed in the 65' stang replacement that I still drive. After 50 years of questionable activity, it's a good thing that those lights can't talk . . . .