I have a guardall DT15 that needs the microwave element disabled, the only way the manual says to do it is to turn on Dipswitch 3 (MW day disable) and then wire an output from the panel up to the test output and 12v in the detector. The detector only has 4 core cable running to it so I can't wire an output up to it due to having no spare cores. Would I be able to place a wire link between 12v and test inside the detector to permanently disable the microwave element? Thanks.