78 Argosy 6 metre Minuet battery compartment door
Welcome to the Forums and the world of Minuet ownership! I can't guarantee that this will work on your Minuet, but it worked on mine when the key wouldn't work in my battery compartment lock. Using an artist's pallette knife (a very flexible, thin bladed paint application tool), I worked the knife between the door and body trim and pushed the lock lever to the unlocked position -- I was then able to install a new cylinder to replace the defective cylinder.
Kevin D. Allen
WBCCI (Lifetime Member)/VAC/Free Wheelers #6359
1964 Overlander International/1999 GMC K2500 Suburban (7400 VORTEC/4.11 Differentials)
1978 Argosy Minuet 6.0 Metre/1975 Cadillac Eldorado Convertible (8.2 Liter V8/2.70 Final Drive)