ok, here is the deal im goig to get the alpine cda9835 and a 4 channel amp. then from the amp to the front im going to get a crossover to split the signal for my 5 1/4 and factory door tweets. question can i get a crossover that will send a normal signal to my 5's and a high signal to my door tweets.....and can i adjust the power going to my door tweets so i dont blow them. Thanks guys