DG408http://www.digikey.com/product-detail/en/DG408DJZ/DG408DJZ-ND/821394
Perhaps a rotary switch?http://www.digikey.com/product-search/en/switches/rotary-switches/1114210?k=rotary%20switch
this will work great, but this is the first time i see those stuff, could you please explain how to use those switches?i selected 4 positions, 4 decks, 4PST.i found this:do you think its good enough?http://www.digikey.com/product-detail/en/71A30-04-1-04N/71A30-04-1-04N-ND/4115494