Don't know if this is going to help but worth a quick check.
Down on the left side of the knee bolster (in front of driver's left knee) there is a little door for the fuse block.
Pop the door off,there will be a yellow insert in the fuse block with two fuses in it. Just simply push in on the whole thing!
In the early stages of the mirages we had a few coming in with the radio not working and the cause was that this yellow holder was not seated into the fuse block. Could affect other things too,I forgot what else but something rings a bell with key on or off power draw something. (have to look it up)
Takes ten seconds to do,give it a try!
View my fuel log 2014 Mirage DE 1.2 manual: 66.3 mpg (US) ... 28.2 km/L ... 3.5 L/100 km ... 79.7 mpg (Imp)