In the large headlights (but
not in the fog lights!) they are where you can fit
'Accent Lights', but they weren't fitted as standard on all RT models. So if you just have the shiny placcy bits & not an actual light, then your particular machine didn't get the Accent Lights, sorry!
Don't know if you can still buy the kits for them, but if you can, you'll need some way of drilling or cutting out the shiny placcy bits - and that's not really easy to do well.