How hook up an amp to a car

Older systems usually lack RCA jacks, but just because you have an older system does not mean you cannot add an amp for additional power to push your speakers or subwoofers. Before you begin the installation process, it's imperative that you make sure the amp you've chosen is capable of accepting speaker or line-level connections. Once you've double-checked these things, you're ready to start. Determine an ideal location for your amp inside the cabin or trunk of your vehicle. 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.

How to Install an Amp Without RCA Jacks | It Still Works

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. Connect your speaker wires to these outputs -- one into each output.

The speaker wires are usually just bare wire ends. Make sure you're connecting the left and right output speaker wires into their corresponding left and right speakers. Famous Movie Quote Quiz: How do you connect a subwoofer to an amplifier? Quizzes " " Famous Movie Quote Quiz: Consult the owner's manual or the manufacturer of your amplifier to determine the size fuse you should use. Run your RCA cables and remote turn-on lead remote turn on lead is the blue wire with white line from the back of the head unit to the amp.

How to Install an Amp Without RCA Jacks

Snake them through the car in the same way you did the power wire, but do it on the opposite side of the vehicle. This will prevent noise in the system. Connect the speaker wires from the amplifier to the speakers. Situate these wires away from the power wires. Connect the amp's negative terminal to the car's chassis ground.

Use a short negative power wire that is the same diameter as the positive wire that leads to the battery. Insert the main power wire fuse once all the connections for the other wires are in place. Set all of the input level gain controls to their lowest setting. Set equalizers to their center, or neutral, position if you have them. Put in a CD with music that you are familiar with. Choose something strong and clean sounding. Turn up the deck's volume until you hear distortion, and set it just below that level.

If you don't hear distortion even at the loudest setting, the head unit is in good shape. Repeat this process for the input gain, and then with all the other components. While your key and radio is on, disconnect and connect the remote wire to the amp. Not Helpful 2 Helpful 9.

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The balance on your radio may have gotten moved from center to right or left, or your speaker wire may have come disconnected. Check your balance first on your radio's settings. If that's not it, trace your wires to make sure they are connected.

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 speaker. Not Helpful 3 Helpful 8. You probably have it connected to a full time 12 volt power source, you need to connect it to a source that is only powered when the key is in the on or accessory position.

Not Helpful 0 Helpful 2. This is called "line input. Connect the wires just like you would to your speakers.

How to install an amp and sub in your car - Crutchfield video