whats the wiring for???

[msethk]

I have a 1994 c280. I pulled out the cassette storage from the central dash to replace it with an updated storage tray ($twelve dollars and change at the dealer, what a deal, never used the cassette storage anyway...a waste of space) and found wiring behind it with a piece of foam wrapped around it. there was also another clasp with wiring that appeared to be part of the same harness. Anyone know what its for?? thanks in advance.