94 GT Coupe.
No output to the front door subs. Front & rear tweeters work great, rear subs are great, but no front.
1.Replaced all three amps. Checked front speakers. Replaced headunit. Checked the connectors on the rear amps.( was told rear amp outputs to front subs) Smaller black connector on RH amp has 3 wires, same connector on LH amp has only two wires. Pretty frustrated at this point. If I leave the front subs plugged in, I get a buzz/rattle that sounds like a blown speaker, but there is no volume, and those speakers work when plugged in elseware. If I unplug the RH rear amp, rear subs quit. If I unplug LH rear amp, nothing happens. I checked it for voltage, and replaced it with another. Still no front subs. Help.

 

the amp on the drivers side of the car powers the front speakers and the passenger side the rear. Just curious if you started simple and checked all the fuses both under the hood and the dash? I don't know which one, it takes less time to check every single one then to get the manual. Also try to push, pull or generally move the wiring harness that goes to the amp while it has power to see if it makes any difference.

 

Yes, I did check all the fuses. I even removed the drivers side seat so that I could lay down under the dash to check thoses fuses, as I don't see a way to pull the fuse box down to check. I also checked under the hood fuses, and I did try moving the cables and harness to check for a bad connection. I did notice on the back side of the rear amps, the passenger side amp, (black connector I believe), has three wires, the drivers side amp, the black connector has two. Couldn't find a picture anywhere to see if that is factory.
Thank you.

 

Were the subs hit by a depth charge attack?

 

Maybe its one of those things that you have to be there.......


Do you have a multimeter and know how to use it?

 

Yes I have and use a digital multimeter. I checked both rear amps for input voltage and found voltage on both amps. I don't remember the numbers now, I can recheck them. I was at the time more interested in finding IF there was input voltage present. I believe on the passenger side amp, I found 5+ DC volts on one wire, then a lessor amount on the other two. On the driver side amp there is only two input wires, which one showed 5+ DC volts and the other was less, I'm thinking 2+ volts but not for sure on the rate without rechecking. Than you.

 

check the fuses? lol