Thanks for the response.
My car is a 2001 Ford Mustang V6. I have a Optimus 500watt amp, and 2 10" Kicker subs. Everything was working perfectly, I tried out the Nav, I tried out the Dvd and a Cd, my ipod, my bluetooth, and then it just stopped working, do think a speaker at the door could of come unplugged. I have recently installed the mach 460 door tweeters because my car did not come with them. I did have the drivers side door wire that is to the door tweeter hanging down when i was putting the car back together, i might have pulled it and maybe one of the connections came loose at