6awg/2C in shielded tech cable if it is to be exposed.
From the positive battery cable but you must HAVE A FUSE BLOCK OR A SHORTED WIRE WILL CAUSE A FIRE.
Use 6 gauge
as close to the battery as possible, that way if the power cable shorts on the frame somewhere, it will blow the fuse, if it was near the amp, it would not blow the fuse, and the cable could possibly start burning!!!!
#10 cable is no good for 120 amps, you need #2 cable, and it can be used at a distance of 250 ft.
take a red power wire run it from the positive side of the battery to the amp. Take a yellow wire run it from the amp to the fuse panel and tie it in to the radio fuse. Then run your jacks from the radio to the amp and speaker wires from radio to amp.
To run a remote wire for an amp to the fuse box, first, locate a suitable fuse that powers on with the ignition (usually in the fuse box under the dashboard). Use a fuse tap or add an appropriate fuse holder to connect the remote wire to the chosen fuse. Run the remote wire from the amplifier to the fuse box, ensuring it is secured and protected from potential damage. Finally, make sure the connection is tight and check the amp's functionality before finalizing your installation.
I have, I have even used the output for the input of the same amp, so that you only run one RCA cable to the amp, then run the output back to the other input, and it runs 4 channels.. :o)
I'm assuming the headunit has 2 sets of RCA outs - Front and Rear. If so, then one of your amps will need to have RCA outputs(sometimes called pass through) as well as inputs. Run an RCA cable from the "rear" outputs on the deck, into the inputs of the amp that has outputs. Now run a cable from the outputs on that amp to the inputs on your sub-amp.
The difference between fuses is the current that they are designed to support. A fuse is intended as a safety measure to protect against overload. A 3 amp fuse should burn out if more than 3 amps is run through it, with some allowance for standard variance. A 13 amp fuse would burn out with greater than 13 amps. It is always a bad idea to use a fuse bigger than you need, because if your component is designed for a 3 amp fuse and you use a 13 amp fuse, there is a good chance you could damage your component with too much amperage because the fuse would not burn out at 3 amps, as was intended.
There is a 30 amp relay above the fuse panel. There is also a 15 amp fuse in the center of the fuse panel. panel is mounted under left of dash
Yes, this is very possible. Just disconnect your battery & run the power with an inline fuse from your battery to your amp. Hook up the ground as close to your amp as possible. Now you need to run your remote wire. You can run a wire from your battery with a 10/15amp inline fuse as close to the battery as possible. Then to a toggle switch inside the vehicle & then onto the rem hookup on the amp. Or, you can try splicing into your radio wiring (usually blue & white) & run a lead going to the rem hookup on the amp. Now, after all of that, you will need to splice into you REAR speaker wires- no rca here. Run the spliced off pos & neg wires into you amp & then setup your crossover & blend out as much high frequency as possible. You should be good to go.
first you have to buy a amp hookup kit. then the long red wire in the amp kit you take the end with the fuse on it and hook it up to the battery. then you have to drill a hole in your. firewall and run the wire to the amp in the trunk of your car. then you take the big black wire and ground it to anything metal on ur car. make sure it is tight. then you take the aux cable and hook them into the back of the stereo and run the to the left or right input on the amp. Make sure that the power wire and aux cable are on opposite sides of the vehicle for less distortion and interference.then you take speaker wire and hook it up to the rear output of the amp and run it to your speaker. then you take another speaker wire and run it from the front output and run it to your rear factory speakers on the high input level. and you should be jammin down the road then.