Help needed!

I’ve fitted some strobes to my scania next gens grill (r450). Does anybody the easiest way to get wires up in to the cab to the 12v socket?? I’m sure there is an easy way but I just can’t see it. TIA

I wish people would give some clue in the thread title what they need help with. I like to help if possible, but I know the far end of sweet FA about scania wiring so could quite easily have given this a miss.