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Do you disconnect existing wires to speakers when connecting an amp in car then run from amp to speakers

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If your talking about subs yes. if your talking about stock speakers be careful that your amp is a 4 channel not mono or sub amp as it may blow your car speakers. buts the solution.

Posted on Mar 16, 2011

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How do I hook up a sub woofer & speakers to my car stereo?


If you are replacing the existing door/deck speakers with replacements of the same size and not adding an amplifier, you will be able to use the existing wiring, making note of the positive and negative notation.
Subwoofers, on the other hand, require an amp. There are subs that have an integrated amp in the enclosure, otherwise you will need to buy a separate amp. Connecting the amp to your existing system will highly depend on what outputs your head unit (aka stereo) has. If it has pre-amp outputs, those can be run straight to sub amp. If there are not pre-amp outputs, you may have to buy a "high level" adapter that connects to the same head unit outputs as your speakers.

Jul 02, 2016 | Car Audio & Video

1 Answer

The wires to the subwoofer in my 1991 ls400 are missing when bought car. Where do I hook up new wires. What color are the wires that I need to splice into. Or do I go directly to the amp.


I'd run directly to the amp, myself - you never know for sure if any existing wiring is connected where it's supposed to be connected, or pinched under a seat and shorted to ground, like that.

Jul 19, 2014 | Car Audio & Video

1 Answer

How to install kenwood 729s withno rca outlet on radio


You can run the speaker wires to the speaker level input on the amp or i believe you can run another set of speaker wires spliced into the existing wires in parallel to the speaker level input along with the speakers that are already hooked up if you are using the amp for a sub or other speakers that you have added to the existing system.

Apr 14, 2014 | Kenwood KAC-729S Car Audio Amplifier

1 Answer

I have alpine sps600c & am installing them in a 2001 Nissan frontier w/ 6 disc 6 speaker (2 ea in each ront door, 2 in back (crew cab). Do I wire my tweeters to existing tweeter output, or...


Did you change out the factory deck? If not, wire the tweets to the existing wiring. If you already have tweets they have been crossedover already. However, if you replaced the deck, you may need to run new wire to the doors and use the crossover that came with your component set. Hope this helps

Sep 05, 2011 | Alpine SPS-600C Car Component System

3 Answers

I have two wires coming from amp and my sub box only has one possitive and one negative for two subs how do I make this work


Your subs are set to connect as one channel... One Speaker, even though as a SET.

You can either hook them up as is. meaning to the rear amp channel or the front. which ever option your amp offers.

OR

Open the sub box, disconnect the one speaker from the other and fish the new wire through the box so you can connect them to the Amp separately.

I suggest going with the first option and connecting them on the AMPS, rear channel...


Good luck


Respectfully

Jun 10, 2011 | Car Audio & Video

1 Answer

My eclipse 33250 premium amp keeps blowing fuses when I then it on


If you have wires connected to it may be connected improperly. Check power and ground connections if they are connected properly then disconnect all RCA cables and re turn on amp if fuses blow then an internal problem exist and you must send it in for repair.

Oct 10, 2010 | Car Audio & Video

1 Answer

How do I wire the system


You would require an amplifier wiring kit which will contain all the wires to get power and signal to your amplifier; six feet of 14-gauge speaker wire for the subwoofers. Your speakers should have come with their own speaker wires.

The amp connects to your head unit via an RCA cable and often a "remote on" wire, and also connects directly to your car battery through a fused "hot" wire and to the car's chassis with a short ground wire.


The complete installation process is as follows

#1

Disconnect the ground (negative) cable from your battery first and foremost. NEVER work on the electrical system of your car with this connected.

#2

Install your new speakers. Start by removing the paneling of the speaker enclosure. Unscrew and disconnect the old speaker.

Ideally the speaker wire will be connected to the old speakers with a metal clip that can then slide right on to your new ones. If not, cut the wire off the old speakers, strip about half an inch of it, then cut the last 6 inches or so off the speaker wire that came with your speakers so you have the proper connectors with a little wire attached, strip a half inch of those wires and twist connect them to the existing speaker wire. Bend the twists so they are in-line with the wire and wrap each connection in electrical tape so no wire is showing to protect them.

Attach the connectors to your new speaker. Make sure to connect the negative wire (-/black) to the negative terminal on the speaker and the positive wire (+/red or white) to the positive one. Screw the speaker in place. If you have component speakers, and therefore a crossover, make sure the crossover is secured in the speaker compartment so that it does not bounce around while you drive.

Wait to put the speaker enclosures back together until you have installed the head unit.

#3

Follow the instructions you got for removing whatever part of the dash covers it and take out your existing head unit. Connect the car stereo wire harness to the connector that was attached to your old radio and attach the other end to your new one. Connect the antenna cable (the single wire with the big plug at the end) to your new head unit as well.

If the speaker wires are separate from the harness connect them using the method of stripping, twisting, and taping described above. Do this one at a time or use masking tape to label the wire to avoid confusion. If you are having trouble figuring out which wires go to which speaker or which is positive and negative read the tip at the bottom of this section.

Do not put your new head unit into the dash yet-you still need to connect the amplifier to it. Put the speaker enclosures back together now.

#4

Attach the thick positive (+/red) power cable for your amplifier to the connector on positive terminal of your battery. The kit you purchased should have come with an o-ring on one end of the wire (you may have to crimp it on yourself, if so do it on the end with the fuse), this ring can be sandwiched in the bolt on the connector that connects your car to the battery.

#5

Put the fuse in the fuse holder.

#6

Run the power cable through the firewall of your car (there is usually an opening on the drivers side) and along to the back of the car where your amp is. It is usually best to run this wire under the plastic molding that goes along the bottom edge of your car, you never want the power cable to come near any speaker wires. At the same time run the remote on wire (a really thin wire from the amplifier wiring kit), through the dash where the head unit will sit, along with the power cable to the amp.

#7

On the other side of the car run the RCA signal cable through the dash from the head unit to the amp (it's a pair of wires together with connectors on each end).

#8

In the back of the car pick exactly where your amp and subwoofers are going to go. Part of choosing this is that the thick black ground cable (negative) needs to have a place to connect to the metal frame of your car. This should be as short as possible, you never want the ground cable to be longer than 3 feet.

#9

Find a good screw or bolt, take if off and sandpaper the metal surface that the o-ring will make contact with, then screw it down tightly.

#10

Attach the RCA signal cable and the remote on cable to your head unit and attach the power, ground, RCA signal, and remote on wires to your amp.

#11

If you have not already done so, place your subwoofer box in the trunk and attach your amplifier to it if that is what you are doing. If you are not going to screw your amp to the subwoofer box then it must be secured to something else.

#12

Attach the 14-gauge speaker wires to the left and right channels of the amplifier and to the speaker connectors of the subwoofer box.

#13

Mount your head unit into the dash. Double check all of the connections on the back of it to make sure they are secure. Then slide your head unit into its slot in the dash and screw it securely in place. Before you re-attach the dash, reconnect the ground (negative) cable to your car battery and turn the stereo on and move around the car listening to each speaker to make sure everything is working properly. Then put the dash back on. You are all done!


Hope this helps

Thanks

Oct 08, 2010 | Jensen XA2250 Car Audio Amplifier

1 Answer

I have used the amp for a while running 4 speakers. the front are components, and 6x9 in the back. The amp worked great and was loud. The amp just stopped working one day when i turned it on. Turns on...


One of your speakers might have burned out, shorting the wires that connect it to the amp. Disconnect one speaker at a time from the amp, turn it on(try all four, turning the amp on and off each time you disconnect a speakers wires) and you can pinpoint which speaker might be causing the amp to go into protect mode. If you disconnect all the speakers and the amp still goes in protect mode, then the amp is shorted internally and will need to be replaced or repaired.

Sep 22, 2010 | Clarion APA450 Car Audio Amplifier

1 Answer

I wont the speakers hooked to the cd player no the amp


check were the speakers are installed for pre existing wiring they probly left it there.. if not then you will have to run speaker wire from your stereo wiring harness to your speakers. if the speakers were hooked up to the amp then the wire in the harness should be vacant and you can use it if all the wires are connected then that means that you just have to find were that wire leads and hook your speakers up to it.

Jun 03, 2010 | Pioneer DEH-P6400 CD Player

1 Answer

Dual SBX554


POWR TO BATTERY FOR WHAT?DOES THE SPEAKERS HAVE AN AMPLIFIER? NEW RADIO? SPEAKERS ALONE ARE NOT CONNECTED TO BATTERY ,UNLESS THEY ARE POWERED SPEAKERS,USALLY SUB-WOOFERS HAVE THEIR OWN AMP.iF YOU ARE CONNECTING A AMPLIFIER START WITH A FUSE SAME SIZE AS THE AMP,CONECT 1ST TO THE BATTERYTHE TO THE FUSE RUN A SIFICIANT GAUGE POWER CABLE TO THE AMP.GET THE GOUND FROM A PART OF THE CHASSIS CLOSE TO THE AMP,ALSO SAME SIZE OR LAGER GAUGE WIRE.THEN YOU HAVE TO RUN A REMOTE SWICH WIRE FROM THE BACK OF THE RADIO TO THE AMP.iF RADIO DONT HAVE REMOTE ,CUT INTO THE POWER ANTENNA WIRE .RUIN YOU RCA CABLES TO THE AMP AND WIRE YOU R SPEAKERSMbUT FIRST DISCONNECT YOUR GROUND FROM THE BATERY MOST IMPORTANT.ANY '?'S.WRITE BACK RATING PLEAse.

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