How to install an Amplifier:
Not my write up, thou read all this before trying it on my own car, so thought I’d share.
Procedure
Disconnect the battery terminals: Just be safe. Do this.
Run the power cable from the battery to the location of the amp
Install an in-line fuse holder for the power wire as close as possible to the battery terminal connection (the IASCA rule is within 18"). VERY, VERY IMPORTANT!!!!! This fuse protects your vehicle from burning up in case of the power wiring shorting out. The wire between the fuse and the battery terminal will be unprotected, which is why you want this section to be as short as possible. The fuse size depends on the current the power wire will carry. Consult the owner's manual of your amplifier(s) to find out the maximum current draw of your system. You can also contact the manufacturer and ask them for that information. For multiple amplifiers you will need to add up the maximum current draw of each amplifier. Once you know the maximum current draw you'll know what size fuse to use. For example, if your maximum current draw is 50 amps then you'll need a 50 amp fuse
Be sure you run the power cable away from any RCA cables. I usually run the power cable down the side of the vehicle that the battery is installed on, and run the RCA cables down the center of the vehicle.
Find a suitable ground point as close to the amplifier as possible and use thick wire according to the table given below
Im using rear seat belt holders as my ground point.
Use a piece of sandpaper to remove any paint or finish from your ground point. Use it to also sand away any rust or residue on your ground point. You want a good solid connection, so you'll want to see nice shiny metal.
Be sure to run RCA cables and the remote turn on!, remote turn on is a wire which runs from ur head unit back to the amp connection named RMT or similar, it works as a relay, to turn ur amp on and off with deck.
Use as thick RCA cables as possible.
Run your RCAs and remote turn-on. Keep the RCA cables away from any sort of power cable, especially the power cable for your amp(s). It's OK to run the remote turn-on wire with the RCAs. If u run ur RCA cables with power cables, there is a chance of interference and u might hear continues hisss sound.
Run speaker wires from your speakers to your amp's installation location. Use largest guage possible.
Connect all wires with clean heads, do not leave any naked wire.
Permanately Mount your amplifier
If u r using a subwoofer box, U MUST FIX IT, or else incase of accidents, the mass/momentum of the box can be very destructive for rear seat passengers.
Tweak! ( copy/pasted, source, don’t remember)
Now that you've installed your amp(s), you're pretty excited to get rollin. Step 1: Be sure all of the amp's gains are down, the bass boost is off, and the crossovers are set to the correct frequency band.
Get one of your favorite CDs, preferably one that is clean sounding. I have found classical and jazz to work great, but alternative and pop work as well. Try to avoid really loud or bass heavy music. If you must, try to use a more melodic CD: Not one that's just all bass, or noise, you know? The important thing is that the CD is representative of what you normally listen to, because it's YOUR system, and it's YOUR music. Darn tootin!
Step 2: Power on!
Step 3: Turn your head units controls to neutral. EQs off, loudness off, fade and balance centered.
Step 4: Turn the volume up until you hear distortion (you know it when you hear it, and go on to step 5), or the volume control is all the way up. (go to step 6)
Step 5: If you hear distortion, back the volume up until no more distortion is heard. At this point, you know how loud your system is gonna go before it starts distorting, sounding horrible, and smoking speakers. (Move on to step 7, and lower your volume!)
Step 6: If your head unit goes all the way up, and doesn't distort, you have a good unit that your amp can handle. Go to your amp, and while the music is playing, slowly turn up the gains. Once you hear distortion, back off a little. Turn your head unit's volume down!
Step 7: Now go to your head unit. Set all of the eq, loudness, crossover controls, and dsp that you want. Repeat steps 4-6 with all of these controls set to how you want them.
pic of my car
found a inlet to interior in engine bay for ac wires.
used the inlet for amp wires
3 7/36 wires taped together and fixed in place.
wires hidden behind side plastic cover
wired thru under-door plastic panel till rear seats
battery placed in position
battery with temperary circuit braker, i need critrics here
live wires entering diggi, golden seat belt holder, i used it as groung.
all power wires in place.
no pics of pre-put wires, as i was unable to open up city dashboard.
special thanks to Guncha@PW for his kind help.
