A couple of things here. The yellow wire isn't for an amp; the blue wire is. The yellow wire should be connected to constant power. Secondly, that truck may have a factory amp, in which case you have to connect the blue wires to the remote for that amp, or it will light up, but you will never get any sound.
SOURCE: no sound dual xhd6420 92 accord lx
my brother has a 1993 Honda accord and had the same issue, we put it different speakers and it worked fine, don't know what the problem was but it worked
SOURCE: Just installed Dual XDMA6330 has no power no lights no sound
the red wire needs to go to a switced power source. unless both the red and yellow wires are getting power, the deck will not turn on.
SOURCE: Installed my dual xdm6825 into
I suspect you may have a blown fuse. Either the red or yellow wire from your dash board should have power (+12 DC volts or greater) all the time relative to chassis ground, which should be the black wire. Use a voltmeter to measure this. The other wire (red or yellow) should only have power (+12 DC volts or greater) when the car is turned on or the key is turned to the Aux position. Use the voltmeter to measure this also. If one of these wires doesn't measure correctly you most likely have a blown a fuse. I think the Honda Passport has 2 fuse boxes. If you open the driver's door I believe you will see a panel for one fuse box on the left side of the dashboard. I believe the other fuse box is located on the passenger side of the engine compartment. Fuse boxes sometimes have a labeled diagram on their cover or you may be able to find a diagram in your owner's manual. Look for fuses labeled radio or dash. You should be able to easily pull them out with a pair of needle nose pliers. If you look carefully at them you can usually tell if they're blown because the wire inside will look broken. Replace any burnt out fuses with new fuses rated at the same current value. The current rating of the fuse is usually written on the outside and it will generally be a number like 10, 15, or 20. Most of the time the fuses are color coded by current rating. You can buy new fuses at any auto parts store, or if you're lucky there will be a few spare fuses inside the fuse box. I hope this advice helps you out.
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