I got my new headunit and amp and subs installed about a week or so ago. This is the 3rd car this stereo is been in and most of the time I can use the same EQ settings for every car with fairly similar sound results. This time however, I can't. There's a LOT of high frequency tweeter in this car. I was wondering first, where the Crossover for the back speakers are, and if it is tunable (to relieve some of the high-freq). I was going to use my 5-way 6 1/2" premiers, but the crossover would just cut half of the tweeters out anyway so I opted to leave them out. May sell/trade them off to get a set of component replacements instead.