Hello

Got a tug with delicate superstructure. I'd like to instal an 'external' illuminated on/off switch so I contect 2x 12vbatteries, lights water pump/hose and then put the accommodation back on and then at the lake, just flick/push the external switch, without removing accommodation and risk damaging on the muddy pond bank.

Any ideas please? I want illuminated for easy to see on or off but that is desired not essential.

Thanks