i have a 93 mpv and i put the alarm on my van i put air horn on my van and i had them together they work of a wile put now the light dont works when the alarms go off it use to work and over night it stop i disk conect the air horn raly the alarm work i put a new relay still it dont works i try to put a new gorund and it dont work but if i diconect the ground fron the air horn it work what do i do to fix that how can i get my light to work when my alarm go off i have new relays and still it donnt work i bought it in orlando and i live in new york now that y im trying to fix it on my own