[V 8's 4 life]

i have the stock alarm on my 95 mustang gt. but i dont have a remote and i took off the battery then went to reconect it and the alarm went off. so i turned the key to accesories and then reconnected it again the alarm dident go off but i turned the car off then back to accesories and it went off again and i pressed the little reset button but that dident work so i had to toatally discconect the battery again. anyone know how to fix this or someone i could call who knowes how.