This guy is claiming 12 grand in damage due to an install done at circuit city
YouTube - VTECnical's Honda Civic after Circuit City Install
he claims the wiring is a fire hazzard, but it was soldered (how does he think the "correct" harness is installed?) now they dropping of the tweeters into the dash is a bit lacking, but cutting and splicing is not abnormal in a shop (yeah he should have used the plug harness, because they help resale when you want to put the old unit back, but they do not make a job safer (I don't use them on my own cars as it's not going back stock anyway)