Boosted Falcon

For all the Auto elecs out there, i recently changed my interior cabin light bulb on my XG ute cause it was screwed. Ok, all good so far, but then it was on constantly and i couldnt turn it off, So i decided to remove the bulb. That solved it being constantly on (funnily enough) and i replaced it with the other light i got in the 2pk and it wouldn't work at all. I also tried putting the original light as well as the one i bought back in and now none of the 3 lights want to work and i'm driving around with no interior light at all.

Any ideas?