Ok let me start out by saying today I'm installing my 3000 watt system in my car. I put my head-unit in works great really f'in loud w/o subs. So I switch over my battery terminals to the decent kind instead of the crappy flat aluminum ones that was on my car. I go to start it up after I get my 0 gauge wire ran (oh yeh ran into alot of problems with that but they where ez fixes) anyway on with the story. Go to start the car all it dose is kill all the electronics like it should to get max volts to starter then nothing no clicks nothing. So after I took off my positive cable and cleaned/put the power wires in a better spot on the clamps like 15 times to get a better connection (I only changed the positive for now will get to the negative latter today) Needless to say by this time I'm po'ed off b/c just spent the past 3 hours running all the stuff and now my car wont start. Then I noticed something I HAD THE CAR IN 1ST GEAR!!!! I put it there so I had more access to the head-unit. Then after I put it in park it just clicks like 600 times then nothing. Figuring it was still a bad connection I moved the positive cable on the battery for the 600000th time still just clicks. At this time I remember my negative is still loose (on the battery with connection just not tightened down) Got all that done and found out my battery was dead b/c this hole time the car wont start it is raining outside so I'm soaking wet and I was blaring music. I found out it was dead because I looked at my DIC and noticed it said 9.4 volts battery. Hooked up the battery charger let it charge for about 10 min and the car starts. WOOT now I just gota wait for the amp to arrive via ups and it will all be hooked up.