This whole past week i've been having to jump my car in the morning (it's also just started getting colder outside) and finally today i let it charge for a while and it still wont start. My lights and stereo still work fine though on aux, it just wont start... it doesnt even crank. I have both amps hooked up and dont have a cap yet, but is this normal? i guess i'll pull the battery and take it in to test, any suggestions though? might it be something else besides the battey?? thanks--