Here’s an obscurity: On Interstate 15 by Wall of Voodoo.
Sounds like something Ennio Morricone would have composed for a spaghetti western.
There’s more to WoV than “Mexican Radio” - believe it or not 
The instrumental coda to Layla, by Derek and the Dominoes. The wistfulness and melancholy and hurt and love all rolled together is quite simply amazing.