So my car has a non bose system but it does have the 8 speaker separates with the 6x9s and 4" in the rear deck and 5.25" and tweeters in the fron doors. Prior to my buying the car, the rear speakers had been chaged out to full range 6x9s and full range 4"s but the door speakers were untouched and sounded bad. I decided to just change out the 5.25 woofer with a 5.25 full range and just delete the tweeter... Or so I thought. When I did this on the passenger door it involved cutting the positive and negatives off the original as well as unclipping a harness that went from the 5.25 to the tweeter. I hooked up the new full range 5.25 and had zero sound then I plugged in the harness and all I get is high freq coming through. No meter to check actual freq but they are high as in dogs howl high. Any idea what I did wrong? and what I need to do to fix it? Thanks