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How to Hook Up a Amp: 7 Steps

How to install a car amplifier

Wiring in one amplifier can be complicated enough, especially when you're dealing with a factory car stereo, and the situation just gets more complex when you add multiple amplifiers to the equation. You can wire two amplifiers, or even multiple amps, in one car audio system, but it takes some extra planning. The main factors that you need to consider when you wire in two or more amps are how you will deal with the power cable, grounding each amp, and whether or not the remote turn-on signal from your head unit is strong enough to split between multiple amps. The short answer is that you can use any number or combination of power amps in a car audio setup as long as you wire them in properly. The main proviso is that the charging system has to be able to provide enough juice in the first place. If you add in too many amps, and they draw too much power, you may need to upgrade your alternator or install a stiffening cap. The most common reason to wire in multiple amps is to have one for your main speakers and a second amplifier for a subwoofer.

Wherever possible, try to use existing holes, following an existing wiring loom.

Here's a step-by-step guide to installing a car amplifier, including how to wire the amp and Or, if you're using a line output converter, it's not hooked up right. and driving the speakers. The main reason for connecting an amplifier to the stereo would be. Hook up a home stereo to an amp with standard audio cables . Next its time to hook up the speaker wire from the sub to amp. In this case the wires are blue. The blue wire with the white stripe is positive and the solid blue is .

If this isn't possible, you'll have to drill a new hole through the firewall. Ensure that you have enough wiring for the job.

If you're short on wiring, either order more or locate the amplifier to suit the wiring that you have. Disconnect the positive battery terminal before commencing any work.

Be sure that you know what's behind the spot where you are about to drill to avoid damaging any components.

Start with a small pilot hole using a steel drill bit, then drill the hole out to the appropriate size.

You'll need to fit a rubber grommet to avoid damaging the wire with the sharp steel edge of the hole, so drill to fit the size of the grommet. Paint the bare metal surface around the drill hole to avoid getting rust in the hole, and fit the grommet.

Position the amp in place and mark out the mounting holes with a pencil or marker.

How do you hook up an amp

Again, check the underside of all surfaces before drilling, then drill away and secure the amp using mounting screws. Run all your wiring out to the appropriate places and cut to length, always leaving yourself a bit extra.

A bit of slack in the cables is better than having them too tight. Cut the insulation off the end of all the wires and leave enough space to attach connector plugs. Some systems will only require you to use bare wires as a connection.

Wiring in two or more amps is more complicated than wiring a single amp, the relay should be hooked up to another source of battery voltage. If you're fitting subwoofer speakers in a box, mounting the amplifier on the side of the box is a good option. Mount them up high to avoid. Open the amp wiring kit, which contains all the wiring you'll need to hook-up your amp. You will need to connect the lengthy, red wire to the positive terminal of.

If this is the case, bare the wires back just the right length to suit the depth of the connection sockets. Connect the ground wire to a metal point connected to the car's chassis or a dedicated grounding point.

Can You Wire in Multiple Amps, or Are Are You Limited to Just One?

Ensure the ground wire connection is to bare metal. Remove any painted, rusted or dirty surfaces with a file or sandpaper to ensure a good ground connection. Plug your RCA leads, speaker leads and remote turn-on lead from the amp into the back of the head unit.

How to connect your car amplifier. Please subscribe to help my channel

If your head unit doesn't have a remote turn-on wire, you'll need to wire the amp's remote turn-on wire to either the power wire to your head unit, or another power wire running from your accessories setting on the ignition switch.

This needs to be done to avoid having the amp stay switched on when you turn your ignition off, draining your car's battery flat.

Connect the front, rear, and subwoofer speaker wires from the amplifier to the corresponding speakers. Run the power lead from the amp ensuring that it's on the opposite side of the car to your RCA cables through the hole in the firewall and to the battery.

You can mount it on the back of a seat, on the sidewall, on the back of your subwoofer box or on the floor of the trunk away from any loose items that may damage the amp by shifting when the car moves. Open the amp wiring kit, which contains all the wiring you'll need to hook-up your amp.

You will need to connect the lengthy, red wire to the positive terminal of the battery.

This red power wire should be thicker than your speaker wire--typically 8-gauge works fine. Run the positive wire back towards the cabin of the car, avoiding sources of heat and areas that are likely to be splashed by water when driving in inclement weather.

Run the remaining cable through the fire wall, using a rubber grommet if it seems likely the insulated wiring may encounter sharp metal. Hook up both the positive and negative cables to the amp and find a grounding point within range of the negative cable.

How to Hook Up a Amp

You can connect the ground wire to any secure metal piece on the frame of the car that does not have paint on it. Run speaker wire from the outputs, located on the back of the head unit, to the amp, being sure the sound wires run on the opposite side of the car from the power wires.

Otherwise you may hear static interference through your speakers. Run speaker wire from the speaker outputs on the amp to each speaker or subwoofer you wish to be powered by the amp.

Connect the speakers to the speaker wires using electrical tape or wire nuts. This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.

To submit your questions or ideas, or to simply learn more about It Still Works, contact us.

If they are, then hook up an external speaker to the radio's output for that side to see if it is the radio at fault. If the radio is good, it could be a bad. It is very important to match the RMS of your subs to your amp. your voltmeter should jump up to around Volts, then your cap. is charged. . Hook it to a fuse connected to ignition turn on, like your accessory power fuse.

Step 1 Determine an ideal location for your amp inside the cabin or trunk of your vehicle. Step 2 Disconnect the negative terminal of your car's battery for safety purposes. Step 3 Open the amp wiring kit, which contains all the wiring you'll need to hook-up your amp. Step 4 Run the positive wire back towards the cabin of the car, avoiding sources of heat and areas that are likely to be splashed by water when driving in inclement weather.

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