Auto lights issue

[GaryNoGrip]

A couple of weeks ago my lights stopped turning off when I locked the car, today I noticed that the stereo is staying lit up too, any ideas? It's a vy ute or a 2 seater option cv8 lol

[KMud]

Door open plunger?

[GaryNoGrip]

I thought maybe something to do with the door but interior light goes out ok so ruled it out