Noises problem
1994 Ford Escort 4 cyl Front Wheel Drive Manual 150000 miles

i have a 1994 ford escort. i recently hooked up a air horn kit. when i had it all hooked up, i never knew where to put the switch, so i put it in the ash tray, not thinking it had a metal frame. so when i went to go start it nothing happened. i turned back the switch and a buzzing noise came from the passenger side around the firewall. could this be a sign that my computer (ECM) is fried or my Ignition Contol Unit is fried, i'm not sure.