Car/Truck audio experts needed.

OK here goes.

I have a 2007 Chevy Silverado Classic extended cab, a few years ago (5 I think) I replaced the speakers and radio with a better setup, worked great till about the start of summer this year.

The front door main speakers have quit working, but the separate tweeters on the doors work fine, if I turn the treble up I can hear them fine, the rear cab speakers all work fine, have checked the front/rear fader settings and all is normal, removed the door panels and tested the speakers (using a small portable radio) they work, and I don't see any type of water damage.

I can't test the radio harness to the speakers as I don't have a schematic to tell me whats what with the wires, however looking on line I see something mentioned about a speaker fuse for the front door speakers...Great, but where are they???? Can't find anything on the location, they should be accessible from somewhere right????

Any car/truck experts out there????

Help me Mr. Wizard your my only hope....I don't want to take it in, it would cost a bundle to look this problem down.

Does it have factory amps?

No, no factory or other type amps, it's loud enough for me stock.

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Originally Posted by Terryl

No, no factory or other type amps, it's loud enough for me stock.

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P.M. me the vin & I will be able to tell if it has factory supplemental amps or not.Changes the outcome.

Sorry...last 8 digits only please

When you replaced the units i take it, that it is Non-Stock or Factory setup ?
what Brand name ? The guy's here: crutchfield.com might be able to help out
i bought a JVC unit from them and it came with all the instructions & schematics for 2000 Silverado

I was going to suggest amp fuse under the hood but that leaves that out.As for a speaker fuse if there is one that would be new to me.What about the wires in the in the door jam? Did they both stop working at the same time? I know they did have a problem with water getting in between the rubber and the window.But you said you tested the speakers.Maybe Noof can get you the color of the wires to trace back.They may go back to the ecm if the truck has a nav system

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Originally Posted by The Noof

P.M. me the vin & I will be able to tell if it has factory supplemental amps or not.Changes the outcome.

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I will have to go look that up....Tooo smokey right now to work on it, and it wont fit in the shop.

Got the p.m.bro.

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Originally Posted by timc2

I was going to suggest amp fuse under the hood but that leaves that out.As for a speaker fuse if there is one that would be new to me.What about the wires in the in the door jam? Did they both stop working at the same time? I know they did have a problem with water getting in between the rubber and the window.But you said you tested the speakers.Maybe Noof can get you the color of the wires to trace back.They may go back to the ecm if the truck has a nav system

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No, first the right side quit, then the left side about two or three weeks later.

And as stated the tweeters for both sides work fine, speakers have been tested.

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Originally Posted by auggie

When you replaced the units i take it, that it is Non-Stock or Factory setup ?
what Brand name ? The guy's here: crutchfield.com might be able to help out
i bought a JVC unit from them and it came with all the instructions & schematics for 2000 Silverado

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It's a Sony MEX-GS610B7 unit, and the adapter from it to the stock cable, speakers are 6" Ininity's, they came with a water protection half cone for the back side, this goes on the speaker to keep any water from falling directly on the speaker.

thanks for the info, only thing I can suggest is maybe the wire in the harness to those speakers has come apart
or come off the speaker connection, The guy's here: crutchfield.com were a great help when I needed it at the time.

how is the door harness,between the door and the cab,pull the rubber boot back and check for broken wires

i had a problem(s) like this ... it was busted wires from blasting it ..... yeah i know you do it too ;x
it happens when u can't hear maybe ;x

anyways it wouldn't work in the winter & it sorta worked in the summer ... it worked enough where i could hear music .. that was good enough for me ..... turns out the wires weren't even connect i somehow blew them off ?? i don't know some guy showed me they're werent even connected right after we both heard sound out of them ...... don't ask me how it worked like that ... but maybe there not connected ;x

this was a POS beater " all metal " .. you know the kind you ram into the guy in front of you .. for cutting you off ..... i tore apart the doors to get to them ..... i doubt you'll do the same you never know LOL ;D

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Originally Posted by dukeathome

how is the door harness,between the door and the cab,pull the rubber boot back and check for broken wires

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All wiring was checked as far as I could, the funny thing is why both????? And if the wiring through the door boot was bad why would the tweeters still be working?????

This may take a bit to troubleshoot.

Maybe this may help some modifiedlife.com/2007-chevrolet-silverado-c1500-car-radio-wiring-schematic/

I tried that place, you need to ask them for one, and I don't think it's for free, I'm too cheap.

Was it the Bose system?

Hi Terry & friends...I ran the v.i.n. with our local GM dealer:according to them you have the upgraded but non-Bose head unit.I can furnish you a .pdf of the diagrams if you like.Get out your dvom bro...lol

This place: the12volt.com has lots of info, and they have a Forum where installers and car/truck buffs
discuss their problems,how-too's, etc. may find what you need.

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Originally Posted by The Noof

Hi Terry & friends...I ran the v.i.n. with our local GM dealer:according to them you have the upgraded but non-Bose head unit.I can furnish you a .pdf of the diagrams if you like.Get out your dvom bro...lol

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Yes, anything will help.....I had to move the fork truck outside (big job as it's tires are not rated for off concrete usage, crushed a few bricks into the dirt) but got the truck in the shop where the swamp cooler will help with the smoke, this way I can do some serious troubleshooting and also keep cool.(and be able to breath)

Pulling the radio out today, and will use my audio generator to test the wiring down to the doors.

Terryl, did you ever get this problem solved ?

Aww sorry guy's been busy with a pump problem on my water tanks.

Yes I found the problem, it looks like the guy who designed the wire harness for the door did not provide enough vibration protection.

I found one wire going to the main 6" speaker on BOTH sides to have broken loose from the connector, replacing the connector did the trick, I now have a great sounding stereo system.

As to the wire, what ever wire they used was some very cheap stuff, it was very flimsy, I could give it a pull and it snapped, I used some better stuff (thicker gauge and better insulation) and replaced the whole thing up to the connector in the dash, it will now outlast the truck.

Many thanks to all that helped out with this.

Terryl

told ya, glad its fixed