When i tried putting in the fuse the amp burnt all grounds were good i want to know if i can fix this or its junk

Absolutely. The ground wire for a separate amp will need to have a chassis ground, or it will attempt to draw a ground through the radio. Unfortunately, the amp draws allot of current, and the ground foils(all the copper traces in your radio) cannot support an amp ground. Most likely, those traces are probably burnt open. Additionally, these new radios have fuses inline with the foil. They do not look like fuses, so I wouldn't recommend trying to replace them. Additionally, if you pull the cover off, you could potentially destroy many components(mostly ICs) due to lack of ESD precautions(Electrostatic Discharge). If you require more assistance, or would like to inquire about having you Pioneer repaired, please visit my website at audioserviceclinic.com. BTW, I worked at Pioneer, as the Field Service Engineer for all audio products. Thank you.

Remove all the wires from the amp including the remote turn on wire. Once you do that, after about 30 seconds the amp will reset. Hook the power up first, then the ground then the remote. Turn the unit on and check for power WITHOUT the speakers hooked up. If you get no power by now it's a good chance that the amp is cooked. If you do get power, try hoking up your speakers first on one channel then the other channel and then bridged. If it cuts out or off when you touch the speaker wires to one channel or the other, then that channel is no good. Hope this helps.

okay , well you need to make sure all your conections are in the right spots, and that your IN LINE FUSE, between your amp and battery, the big glass one is not burnt, just take a look at the metal piece inside , if its a sold metal piece its good, if its burnt in half like a broken bridge it needs to be replaced. the next thing is the fuse on your amp, you need to make sure it is not burnt also. Check your remote that it is hooked up to the right wire. then check that your sub/speaker wires are connected properly and secure. YOUR GROUND WIRE IS HUGE HERE also. MAKE SURE IT IS GROUNDED TO A GOOD SPOT, YOU MAY HAVE TO MOVE IT AROUND A FEW TIMES TO FIND A GOOD GROUND!!!! if you check all of these things, it should work fine.. you can fiddle with your amp and bass settings levels. turn em up so when it works you know it, but not too much you dont wanna blow nothing :)

Not big enough gauge of ground wire. You should always match the ground wire gauge with your power wire gauge.

Dirty or burnt ground wire ends
Bad place of where ground wire connected

the load you on the amp might be lower that the lowest ohms it can handle...

it maybe fixable. the problem is that when you find what is burnt or messed up, you replace it. after that you need to find out why it burnt or messed up. i wouldnt recomend trying to fix it your self unless you wanna chance it. but if you take it to a technician that can fix it the will be able to tell you if it can be repaired. also check your power and ground wires. make sure youre getting 12 volts to the amp. check your subs and make sure they are good. a bad sub will put a amp into protect. good luck.

My best guess is a bad ground common to both headlights.

I think the 50 amp fuse is for your starting circuit, not the headlamps, which is a 15 or 20 amp fuse. Did you try both dim and bright settings?

Since you don't know which fuse is for what, just remove and replace each fuse one at a time. As you go, visually inspect each fuse and test for continuity with an ohmmeter, then use a pink pearl eraser to clean the wafer tips before replacing. Do this methodically one at a time and replace any bad fuses with THE EXACT SAME AMPERAGE RATING.
Now, if your fuses are clearly marked and you do have a 50amp fuse in your headlamp circuit then you need to put the correct amperage in ASAP. If you have a 50 amp in the headlight circuit the whole circuit could be fried before the fuse blows, which is why you NEVER replace a fuse with a higher rated amperage.

Once you've worked over the fuseblocks go to the headlamp circuit and follow the wires and plugs coming from the lamps and going to the fuse block. Look for ground connections and tighten those, especially those coming from the headlamp wiring harnesses. If your lamps are good, the fuses are good, the plug connections are clean and making good contact and your grounds are good then all thats left is your headlamp switch and wiring to and fro. If you don't know what the plugs are for no harm can come from cleaning and reconnecting them, so you can't go wrong if you just do one at a time in a methodical fashion.
I have an old S-10 and the headlamp switch is junk- I have to hit it with contact cleaner every once in a while because Houston air quality is poor and there is a lot of ozone- all this corrodes connections- fuse maintenance cures a lot of ills.
After the fuseblocks I'd start by checking the actual headlamps to make sure they are working (check each filament for continuity or put 12v to it to test) and clean the contacts.

Then you can work your way back to the fuseblock and switch checking your plugs and connections. Its all pretty straightforward, just be methodical and clean your plug connections as you go. No schematic needed- just a little patience.

One thing to think about if your headlamps are both blown is that your alternator may be overcharging, or the regulator isn't working properly and your headlamps are blown because they got hit with too high a voltage. Eventually this will sulfate the battery and cause an internal short- if it is bulging you can be sure this is happening. So get your alternator and regulator circuit checked if this is the case.
Good luck, If this fixed ya then please rate this solution

fix the plug,car or trailer, and check the wiring and bulb sockets in the trailer
bigger fuses are equal to burnt wiring harness or fires in either vehicle

Hi do this first in this order:

1. Locate your fuse box. ( should be under the drivers steering column or under the dash ect).
2. Usually there is a diagram on the fuse box cover. (usually in Japanese)
3. If you can't speak Japanese, that's fine just go through every fuse in the fuse box and inspect them all
4. Replace burnt out fuses with an identical amp match. (eg burnt 10amp fuse replace with new 10amp fuse). Simple.

Warning do not replace a burnt out fuse with a higher amp fuse as this may cause a fire.
If you continue blowing fuses all the time then there is something not right.
A lose positive wire may be arcing out to negative earth (car body). And causing you to blow fuses.
Its a process of common sense and elimination that will fix this problem.
Let me no how you get on.

Jules...

REPLACE THE WIRE MAKE SURE IT DOSE NOT RUB AGAIN REPLACE FUSE IF THAT DOSE NOT WORK SOME COMPONENTS MAY HAVE BURNT UP HAD TO SAY WITH OUT LOOKING AT IT TAKE THE COVER OFF SEE HOW BAD IT IS GOOD LUCK

It sounds like you have some broken solder connections on the power terminal. if you know how to solder and are good at taking things apart and putting them back together you can fix it pretty easy.

Car amps are not always very easy to take apart if you have never done it before.

Radioshack guys don't know much at all about real repair work, but they can help find a part you might need.

This can probably be fixed at a repair shop for $60 to $80 depending on the shops rates.

You know one thing for sure, the amp will work if you hold the terminal down. If it was an electrical problem that needed some real troubleshooting done, holding your finger on the power terminal would not make it start working again. This has to be a bad connection inside the amp.

Feel free to ask for more help again if you need it, and if this was helpful to you a good rating would be appreciated. Thanks