Wiring problem?
 

i've had a dead start from the battery 3 times in the last week..so i figured the batter was no good, and i went on a tried a different battery..and still when i went to my car today, nothing was working, no power lock, window etc. So after getting a boost and running my errands, i came back home and i turned off the car, however, even after i took the keys out, the heating buttons/ac were still lit up and i was able to turn them on/off with the car completly off. I'm pretty sure if i don't touch the car for 10 hours and went back to start it up, the battery would be drained out.

so my question is, what's causing this problem? :confused:

Check Grounds, to frame, starter and alternator.

Also did you try a new battery or was it used?

connections on the battery itself? not tight without booster clamps?

i tried a used battery; and a new breakthough, my heating works with the car completly shut off :confused: