Hi, I have 2 db571's in my front doors and 2 alpine type s 5x7 in back running off a alpine mrp-f300 amp. The door speakers fire into my legs and was hoping to add some up top. I realize reading I should have done a component but I already had the 571's. So i ordered the polk tweeters. How do I wire these in with the 571's? Would i be better off to run the tweets to my ken ddx770 hu or can i tie them in somehow and not lose function from crossover. The amp is 50x4 rms how will it affect that if do tie them in? Thanks....new to this