How To Wire 6×9 Speakers Without Amp

6×9 speakers feature a large cone area and a long wire that can handle a lot of power, making them ideal for boosting the sound in the back of the vehicle. These speakers may be installed in the back of your car, either by fitting both speakers into the standard parcel shelf, by having a custom-built covert shelf created, or by putting the units on your rear seats.

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Process of Wiring 6X9 Speakers

Process of Wiring 6X9 Speakers

You may either use the head unit’s internal amp or an external amp to drive them in your vehicle stereo. Wiring up your deck to your 6×9 speakers is the right approach if you don’t want to deal with the fuss of installing a car amp and ripping off the interior of your car, but incorporating an amp to influence the speakers is a better alternative if you prefer very loud volume, as it can will provide output signal that can run them.

However, since most head units only have a MOSFET output of roughly 25 watts per each of the four channels, the loudspeakers will not be run to their maximum volume output capacity. If you want extremely loud music, you’ll need to acquire a car amp and an additional wiring kit.

You’ll also hear turbulence when you crank the volume all the way up on the radio, since head units can’t deliver pure power at almost full volume as they employ poor built-in amplifiers. As a result, connecting the 6×9 speakers to an amplifier is the ideal option.

When connecting 6×9 speakers to a vehicle amplifier, it’s best to synchronize the rms of the amplifier to the speaker output. This is to ensure that you don’t harm the speakers by under or overpowering the voice coils. Installing the 6×9 vehicle speakers requires a 2-channel amplifier; however, you may utilize the other 2 channels of an existing 4-channel amplifier that has already been connected to the front speakers. Kindly don’t purchase a mono block amplifier that is for a subwoofer in your automobile.

First things first, remove the ground connection (also known as the negative wire) from your batteries. WORKING ON THE ELECTRICAL SYSTEMS OF YOUR VEHICLE WITH THIS ATTACHED IS IN NO WAY ADVISABLE.

Installing a car amplifier requires the purchase of high-quality speaker cables of about 12 gauge in the suitable length. Consider how long it would take to run a cable from an amplifier’s output to speaker ports on each speaker, then multiply that number by two.

Wire 6x9 Speakers Without Amp

In order to reach the 6×9 speakers’ terminals, you must first disconnect the speakers from their locations and remove the speaker cords. Positive (+) and negative (-) spades will be connected to two separate terminals. You may use a wire stripper to remove a 1cm strip from the end of each speaker wire’s plastic covering with ease.

Once you’ve completed that, you’ll be able to link the speakers to the amplifier. Using a soldering iron, connect the wires to the ends and the colors on the wires by following the instructions on the wires. On both speakers, you need to solder the speaker cable with the black stripe along it on the positive spade port, and you need to solder the basic speaker cable without any stripes or marks into the negative spade connections.

The speaker ports on your vehicle amp will be labeled with a short, easy wiring schematic demonstrating you how to connect speakers to it. Both the left and right side channels are required for this setup. It’s time to fetch a screwdriver and remove all four port screws.

After the screws are removed, you should be able to verify which end is left and which end is right. To begin, locate the left side channel and connect the positive speaker cable braid from the left speaker into the port indicated as “+” by sliding it in, below the screws. Then, do the same for the right channel using the positive speaker cable braid from the right speaker. To complete the installation, connect the leftover speaker wires to the ports indicated with the (-) symbol, with the left negative speaker wire connected to the left negative speaker port and the right negative speaker wire connected to the right negative speaker port.

Utilizing a screwdriver, tighten the screws in each of the four-speaker ports to protect the wires from getting undone and causing cracking noises later, if necessary.

Play some music via the head unit to verify whether the speakers function or not. If you can hear sound emanating from the 6×9 speakers, the installation was effective. The amp and the back preamp output on the deck should be connected correctly if you don’t hear audio or the 6×9 speakers aren’t functioning. If the speaker cables or remote turn-on wires are slack, you may want to inspect them. If your amp has an adjustable high-pass filter (hpf), you’ll need to set it to roughly 60 Hz and turn on the gain control, which should be set to maximum.

Read More: How to convert sound bar to center speaker

Process of Installing Rear Speakers in Car

In order, to setup the back speakers, first remove the grilles, then pull out the old speakers, and last put in the fresh speakers. Connect the positive speaker cables to the ports indicated “positive,” and the negative wires to the ports indicated “negative,” when you are wiring the back speakers in the exact same manner as the door speakers.


6X9 speakers are often regarded as one of the greatest methods to improve the audio quality of your vehicle. If you don’t already have a subwoofer, you don’t need one to get even more bass. In contrast, without an amp, the sound gets distorted in the rear.

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