Good morning.

I have started wiring in some micro-lighting such as in the fuel station hut ad pictured below. I'm not quite sure of how to best connect this up. The wires are so fragile and I would rather not pull them through the surface (which ends up in a cavity as well).

What's the best way to connect these? Solder them on to bigger wires? Connector of some sort? Can it be above surface and incorporated into the layout?

Thanks