Hello, Today I finally decided to upgrade my Radio, I took the old Stock out, and put a Dual Electronics Deck in. After researching 5 different wiring diagrams and they all saying the same thing, I quadruple checked all the colors and that they were where they were supposed to go. But I had a Solid Red and a Red with a Black Line left over (Blue too, but that is going to my Amp later on) My front left Speaker DOES NOT work. But after rechecking the diagrams, I have the proper wires connected for that speaker. Could anyone help? It's a 1999 Honda Civic Value Package.

 

first check to make sure the speaker itself is not blown by swapping right left wires. then check if one of the other wires besides the blue amp turn on is the rite one. if that fails return that POS Dual head unit i wouldn't use a Dual product if you paid me. there are tons of better brands in the price range of that.