Hi, i have a problem with my cars starter signal wire. it used to make the starter turn on until a few days ago. sometimes took a couple times but worked. now when i hit the key i don't even get a click or nothing. i know is not my starter because when i introduce power to the signal wire at harness in engine bay, car will turn on. also when i disconnect the signal wire from starter i put a probe on wire and turn key i get power at end of signal wire(when i do this i also hear weird buzzing noise from inside car, near center console). now when i connect it back to starter and hit key there is no power anymore at signal wire. does anyone know what i can check. is there a relay i should be looking for. dont know much about electrical.... anyone have any ideal what i should be looking for. any help will help. first post sorry if too long.