alright, well about six months ago my system started draining my battery, so when I would park for the night, i would take the amp wire off the battery and everything would be fine, well after i but the b20 in, i hooked it back up and it was fine for about a month and kniow its doing it again!!! I know its not that battery, ( I changed it) and my alternator was fine when i had it checked the first time it was draining, so any ideas/experience with this???