So I have an 04 with the Mach 460 in it.. When I purchased the car the last owner had the Mach 1000 (Woofers and amp rack) installed. I just recently put in new woofers due to cleaner crisp bass. I then replaced the door speakers to match the new woofers and they were not clear at all.. I then took it to my local audio place, and they said the mach 460 is wired for the door speakers to play mid range and not full range.. I do not know much about audio and do not know how trustworthy they are.. anybody have the same or similar issues or info on this system? The question I am asking is how do I get the door speakers to play full range instead of mid range?