Need a place to put ground wire for amp - Car Audio & Video

Most amps have 3 places where you need to hook up wires to power them. the 1st is a ground wire that at best is 1 foot long and it goes on the ground or negative 12 volt connection then a bolt on the car you may need to sand off the paint for it to work, 2 a RMT or remote wire that is normally in the middle of the power and the ground connections the remote turns the amp on and off so it needs to go to the remote wire on the radio or a ignition spot on the fuse box - turns on with key on and off when you turn the key off , 3 the power wire is hopefully large 4 gauge wire and goes to the + 12 volt plug on the amp this wire has a in line fuse and goes to the battery and to the amp only. RCA wires go from the radio to the amp and are round and just plug in with no screws some factory radios need a conversion kit you can get at walmart for RCA wires. the speaker wires have some sort of mark or line to tell you what to put were like if you put the line on a negative on the amp you need to put the line on the negative on the speaker box to or it will not bass and could hurt your amp. ask me if you need anything else :) and please rate :/

There are several things you need to look at.

First, do you have the right guage wire for your amplifier. You need to look at the fuses on the amp. This will give you a good idea what kind of power draw it is putting on the electrical system. If you have one 40 amp fuse, 8 guage should be sufficient, 65 or higher, 4 guage is preferred.

Make sure that your ground is good. Always use the same guage wire as your power wire. If you have a multimeter and know how to use it, it will help find the best place to ground your wire. Always sand around where you mount your ground screw to allow for the best contact of your wire.

Check to make sure your RCA gains are turned up on the amp.

This should give you the best chance of getting good power to your amp, and thus, to your subs. If you still have trouble, there may be internal problems with your amp.

norally grounding them in the same place is ok but it could just theres not enough power from the amp too power two subs try hooking up one and see if that gives you the sound your looking for

run a wire from the battery to the place u are putting the amp. place a fuse in that wire no more than 10 inches away from the positive batt terminal. find a bolt near the amp and see if it is grounded. if so connect a wire from the bolt to your neg terminal on the amp. then run a remote wire and your rca from your radio to the amp. then connect a set of speaker wire from the amp to the subs or speakers