Hello, I am upgrading my car-hifi. No big deal. Is only for nn Corsa. Amplifiers, insulation, current and cables are already lying. Tomorrow the speakers (MTX TX665S, M/T-tones and tweeters) come in front. Since I use the original cabling in the door, the question now arises for me if the cable is normal to the middle-low-tone also the high frequency is on it? At dei the TX665 there is a good crossover. I would also like to use these. I’ve got a lot of things to say to you.