Need password help ! Not used my unit for over 9 years , had password save on paper but now is lost . we want to add to our zone but we will need our installer password . I looked inter and many talk about the j pins like the DEF and the RST on the board . mine does not have them . I seen were the DEF was before . but there is no pins or letters that say DEF now . tried touching the contacts anyway . but no luck . mine is model GPA-41-4398 and board says E142927(2) . please help