batterys need charging if an alarm is running the alarm itself can flatten a battery in 2 weeks - 1 month try turning the ignition on before connecting the battery what type of alarm is it does it have overide
it can all be linked if you hold the key in the lock position on your door all the windows go up if held in the unlock they all go down as a temporary fix remove the fuse/fuses for the windows
have you got the bmc on ? if you were doing this from cold its flooding, need to wait for it to warm up a bit before giving beans with induction kit it happened the first time i fitted a K&N on mine
if you have a look at th time trial events in the online seasonal events list and see what cars they are using all of the top ones are using the mitsubishi
if it stays like this i might not bother going likely hood of showers high http://www.netweather.tv/index.cgi?action=uk7dayx2;page=7;type=free;ct=21308~Northampton;sess=#forecast