we are trying to install a new bosch built-in double oven (hbn56m5.1b) - our problem is that we are unable to see how to connect the power cable to the terminal block within the oven - we have removed the small cover that exposes the terminal block, but cannot find anywhere to make the connections. Our previous zanussi had obvious places to put the copper connectors. - we'd appreciate any help/advice/experience on this