Have a Disco 1 that I'm working to bring back to life. I have a missing part on the headliner above the drivers door. Wondering if anyone can shed some light on what should be there. Has 3 wires on an amp connector. Black, brown/black, and white/black. thanks

 

if its a trapezoid shape - and its a little black female connector - I believe that was for a cell phone set up back in the late 90's
likely the cover for what was not installed is missing

 

I think that was for the ultrasonic sound or glass sensor for the factory alarm.

 

Got the same hole on my headliner. I just ignore it.

 

Give that man a prize.