I have a 1997 F150 with a factory radio, cassette and 6 disc changer. Recently the left speakers stopped working, would work sometimes, then all of a sudden all of the speakers do not work now. I tune a station or play a cd and everything seems to be working but no sound. I checked all fuses that had anything to do with audio or radio and they are all good. Any ideas would be appreciated.

 

Your problem could be something as simple as a shorted speaker wire somewhere in the truck, or a bad Deck. There are tests to test speaker wiring if you are up for it, but I'm not gonna write a description if you arent up for it.

ps... 97's have a separate speaker harness on the deck "wink wink"

 

I would be up for the challenge. I bought the deck removal tool and would need to know what to do. Thanks for your advice in advance.

 

One of the tricks of the trade to test speaker wiring...

You need a 1.5volt battery, some wire, and some electricl tape.

attach a lead of wire to each terminal of the battery, tape it up good, strip the insulation off the ends.

______________________/ <--wires to use for testing (+)
XXXXX
XXXXX
XXXXX
XXXXX <-battery
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX_________________/ (-)


Now, take your "tester" and start touching the contacts on the 8 wire speaker harness from the deck, you will hear a static sound when you find a pair. Find all four pairs if you can, if you hear nothing either you don't have the right combination -or-an open wire/bad speaker. Then when you know what wires go to what speaker, hook the (-) side of the battery to ground(any ground will work) and then touch the (battery +) to every speaker wire, if you get noise, then you have found your problem wire.

Most times it's a wire that gets pinched near the speaker itself, in the door boot, or near the deck area.

Hope my pic doesn't too screwed up when I submit this!
I don't remember the colors, or I'd include those as well...

 

Thanks for the info. We will give a try and let you know.