Ok, finaly got time to work on that problem.

Ive check if my alternator still charge... ok so ive disconnect it and still have a drain it the battery, removed old car alarm, little less drain... disconnect audio amp... gone!!! That fucking amp is sucking power when car is off. Now I dont have a drain on the volmeter but after 2 or 3 days the car will not start so I think ive killed the battery with all that shit.