Hi bit of a daft one but I hate being defeated by something that looks so simple!! I've got a nice new gauge pod to put my prosport gauges in, but I'm stuck at unclipping the plastic wiring connecters that go into the back of them!!

I dont want to break the wires, I've just been out and had a bit of a fiddle with a small screwdriver but am still a bit stuck, does anyone know if there is a knack to it??