Best way to hook up amp to factory radio
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How to hook up an amp and sub to a stock stereo.
A sub woofer or two in a vehicle can make the world of difference in listening to music. It is very important to match the RMS of your subs to your amp. You want an amp more powerful than your sub, because you don't want your sub to clip. Clipping is the number one reason of bass distortion. To create this article, 35 people, some anonymous, worked to edit and improve it over time.
This article has also been viewed , times. Learn more. Learn more Gather your equipment Amp, Subs, Stereo, and wiring. If you're using an after market head unit, go to an electronics store's stereo department and ask for a wiring harness from your car to the after market head unit. If you have a Chevy and a Sony stereo go to them and tell them you need a Chevy to Sony wiring harness, they will ask you the year of the vehicle and then go pick it off the shelf, these are usually by the install department behind the counter.
Run your amp wires battery, ground. Figure out where you're going to place the amp, put the beginning of your power red wire there and give it about a foot of wire extra, then begin to hide and run the power wire to under the hood. Run the power wire through the firewall. If you need to drill a hole in the fire wall, be careful not to hit anything on the other side and be sure the drilled hole will not cut through your power line.
Electrical tape at the entry point will give the wire added protection. Make sure this wire is safe from any moving objects. Detach the power cable from the battery and attach your amp's power wire to the power cable for your vehicle; leave it unattached. If you bought a kit it comes with an inline fuse, if you didn't, you need to get an inline fuse. Just cut the power wire, insert the inline fuse and reattach.
The fuse amperage should match the gauge size. Place the amp where you want it, then attach the ground black or brown wire to the amp. Ground it to a piece of bare metal not painted ; most people unscrew a bolt from a seat attach the wire and screw it on. Lightly sand the contact area to expose clean metal before attaching ground. With the converter you get a small box with 2 RCA's coming out and 4 speaker wires out the other.
Now for the Remote blue wire. If you're using After market Stereo there will be a blue wire coming from the wire harness in the back, mostly these are attached so you have to splice, just snip them and tape off the old end and run your remote wire to your amp. If you're using your stock head unit you have to purchase a toggle switch that fits your fancy, find a cool place to mount or hide it, from here you want to attach the remote wire to your amp, run it to your toggle, cut it, attach it to one terminal, then attach the end you just cut to another one.
Then run the remote wire back to the amp and cut it there leaving a foot or so of extra cable. This will come into play later. Use a capacitor to prevent voltage drops caused by deep bass hits, i. Get your capacitor as close to the amp as possible, and use the same ground as you did for the amp. Have your power wire taunt and find out where your cap. You cannot just plug it in; you must charge it first with a resistor, use a 1k ohm resistor because they do not get as hot, it only takes a few seconds to charge, do not do this bare handed.
You want to ground your cap. Run the power wire to your amp. If you have a stock stereo and you have the remote wire there you want to in twine the remote wire with the power wire before inserting in the power slot for amp. The remote wire tells the amp to turn on. Make sure you always turn off your amp when you leave your car, it will overheat and drain your battery. Turn the gain all the way down, start playing music and turn it up to where you usually listen, where the mids sound good.
Tune them gain until the subs sound good. RMS is very important when matching subs and amps, yes not enough power will make subs clip, but also to much power will burn your voice coils by over heating them with too much power. Subs and amps should be matched as closely as possible for best performance and longevity. I have a Pioneer deck, amp, and kicker, installed to shut off from the battery.
The sub cuts on and off at high volume when I use the auxiliary cord to phone. How do I fix this? That could mean your amp cannot handle the sub. Another important factor to consider is Ohms. If you have a 2 ohm sub and a 4 ohm amp it won't produce enough power to properly power the sub. Yes No. Not Helpful 2 Helpful The wires are not grounded properly, check to make sure the surface is clean, unpainted metal.
Not Helpful 6 Helpful Not Helpful 5 Helpful What would cause my sub to kick in when radio is on and stop working when I change source to CD? The remote antenna power wire is responsible for the antenna coming out of a car with a retractable antenna. Remove the wire and find the correct remote amp, then turn on wire or ignition wire to the vehicle. Not Helpful 15 Helpful You should be able to connect it to the auxiliary on the back of the stereo unit. Not Helpful 3 Helpful 7.
My amp is already installed and I just bought a new sub. How do I connect my new sub to my old amp? There should be RCA female plugs on your amp, and on the new sub-box enclosure, there should be another set of RCA plugs or clamps. Just match the positive and negatives. Remote; connect the REM wire to a fuse that only has power when the car is on. Not Helpful 14 Helpful I cannot turn it up any higher than halfway without my amp going into protective mode.
What would cause this? This could be caused by a bad ground. Run yourself a good wire for ground directly to the chassis. Not Helpful 1 Helpful 3. What if I bought my radio harness to fit my truck only? Will the wires still match up on the aftermarket radio I purchased? Yes, you can. It will just plug into your truck and then connect color coordinated wires.
Not Helpful 0 Helpful 1. How should I connect the remote wire so that I don't have to disconnect it when I turn off the car? Hook it to a fuse connected to ignition turn on, like your accessory power fuse. Not Helpful 16 Helpful Unanswered Questions. Did I need to put fuse between the first and second battery? Answer this question Flag as Flag as Can I run 4 speakers and a subwoofer from a single amplifier?
Can I hook up a loc to the rear speaker wires if there is a factory amp to them? If not, where do I hook up the loc wires? Can you add subs to a factory radio? If so short simple easy way? And how can you test your subs to see if there working. Can I connect a kenwood kac to just a sub? Include your email address to get a message when this question is answered.
Already answered Not a question Bad question Other. By using this service, some information may be shared with YouTube. Tips If your amp doesn't turn on, check the amp fuses. Don't forget to test your rem wire before you assume it works. Last thing you need is a dead battery. When connecting a line out connector to a factory head unit, it is advisable to use both sets of speaker wires to maintain the left and right stereo effect from modern music.
Always remember to shut off the amp if you do so manually Soldering 12v power and ground connectors to the wires will reduce circuit resistance and make your power cleaner, giving you better sound. Make sure that you use cables with the correct resistance or impedance for your setup.
Here's a step-by-step guide to installing a car amplifier, including how to wire the amp The easiest way to get these items is with an amplifier wiring kit, which will . If, like a factory radio, your radio doesn't have a remote turn-on output, then. If you're going to use your stock stereo and run the amp from there you and turn it up to where you usually listen, where the mids sound good.
It's possible to add an amp to your car's factory audio system without having to buy an expensive new head unit CD player. Adding an amp will make your audio system sound louder and clearer by allowing you to send more power to your factory speakers or sub-woofers. This tutorial will focus on how to add an amp by using speaker-level inputs to tap into your car's existing wiring.
Wiring up an amplifier to a stock radio is something that many of our customers do themselves.
A sub woofer or two in a vehicle can make the world of difference in listening to music. It is very important to match the RMS of your subs to your amp.
If you want to upgrade your sound system in your car by adding a sub woofer or speakers powered by an auxiliary amplifier without having to get a new head unit then hopefully this should help you: I decided to keep my standard head unit because it looks well in the car, is less likely to attract thieves than a shiny after-market unit and it is a factory upgraded unit anyway and i find it gives pretty good audio quality, it works with the steering wheel controls and has bluetooth and aux-in, so an after-market unit wouldn't offer a substantial upgrade. Factory head units rarely have RCA or "Low line" outputs which your amplifier will need for it's input signal. Bits You'll need: If you dont have it then you should acquire it from your car manufacturers customer service phone number, your local dealer or the internet. Getting them online can be a bit unreliable and expensive.
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