hey everyone. I have a 1999 v70 and my ac only likes to turn on when it wants to. I always have the buttons pushed on on the dash but only sometimes will the buttons actually work. When the buttons are pushed in (on) and the lights are not coming on the air direction also doesn’t work. If anyone has any idea what the problem could be could you offer some advice. I have a hunch it’s a faulty plug or connection somewhere but I have no idea where to start