Switches on main console for the fromnt windows dont work

What is your question?

Out of nowhere the switches on the main console that operate the front windows don't work to make the windows go down. I can open the windows using the key in the door so I know that the motors for the windows work. Also if I open the windows from the outside I can put them back up using the switches. Since I don't open my back windows often I was wondering if their was a way to replace the non working switches with those from my back windows that do work, Plus u would still be able to open the rear windows from the backseat switches. If not could I simply replace those no working switches with just a generic toggle switch from radio shack instead of having to buy the entire set of console switches from mercedes. Basically trying to figure out the cheapest way to remedy the problem ans buying new switches is definitely not the was to go.