I have a 2001 Chevy 1500 Silverado with a Boss plow on it. It does not have the plow prep package on it. Long story on why I didn't buy a 2500 w/ a plow package. Used it to plow last winter and found that the plow pretty much drains the electrical system. I'd like to either put another battery on or install a high output alternator. If given a choice which is the better way to go? Any suggestions on equipment to use? Thanks.