what's this for

[cabx]

Hi all
removed the centre finish panel last night so i could get to the back of the cig lighter.Or as they called it now power source,I now understand how
removing the radio can be a pain in the you know what.Anyway it wasn't working because it wasn't pluged in.Looking auound to see what else is behind there i found this connection the orange one taped up,Does anybody know what its for.