Can someone help with a wall oven wiring question? We are replacing our old wall oven/microwave and want to be sure the electical connection is up to code. First, once the oven is in place, does NEC require that the electrical connection box be accessible without removing the oven? Second, with the old oven, the electrical connection box was just laying loose behind the oven. Shouldn't we attach the box to something? We have room to insert a stud for this attachment.