i am having trouble with my impala for the past months, the ligths from outside and inside kept blinking while driving and after being parked which drained the battery. Anyway i took it o a mechanic and he fixed it he said wires were in the wrong location , also i always had a blinking noise coming from the left side of the dashboard which he also fixed. Well he then told me that i needed to find quick a body control module the one behing left side of the dash because he said it control mostly light(i didn;t understand anything). well a week after that my impala struggles to turn on. Now every morning i have to have my jumper cables ready b4 i go to work and after im off i also need to fing someone to pass me charge with their car. What is happening? can any one help please? Where can i find this part, also a good, cheap price?