About the Crutchfield CSW9W-20
Super-convenient speaker wiring
This 9-wire cable from Crutchfield will make wiring speakers to a 4-channel amp a snap. You can use this cable to send speaker-level signals from the radio to your amplifier's inputs, as well as from the amp's outputs back to your vehicle's speaker-wiring harness. You can also use this cable to connect an aftermarket amp's powered output to the factory speaker wiring found in a factory amp's unplugged wiring harness.
Super-convenient speaker wiring
This 9-wire cable from Crutchfield will make wiring speakers to a 4-channel amp a snap. You can use this cable to send speaker-level signals from the radio to your amplifier's inputs, as well as from the amp's outputs back to your vehicle's speaker-wiring harness. You can also use this cable to connect an aftermarket amp's powered output to the factory speaker wiring found in a factory amp's unplugged wiring harness.
9 conductors
The nine individually colour-coded 18-gauge tinned oxygen-free copper wires are housed inside a black 0.35" thick PVC outer jacket. The conductors' colours match standard aftermarket colour codes.
- white: left front positive
- white/black stripe: left front negative
- grey: right front positive
- grey/black stripe: right front negative
- green: left rear positive
- green/black stripe: left rear negative
- purple: right rear positive
- purple/black stripe: right rear negative)
- light blue: amp turn-on
Want more info?
Check out our "How to connect an amp to a factory stereo" article to learn more about using your factory speaker wiring with your amplifier.
Product highlights:
- 9 individually jacketed wires enclosed in outer PVC jacket
- includes wire for 4 speakers and an amplifier turn-on lead
- color-coded to match standard aftermarket wiring
- 18-gauge tinned oxygen-free copper wire
- warranty: 1 year
- Our 60-day money-back guarantee
- MFR # CSW9W-20
What's in the box:
- One 20' Length of nine conductor wire
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More details on the Crutchfield CSW9W-20
Researched by Crutchfield's Stacey B.
The Crutchfield CSW9W-20 replaces these items:
Product Research
Features
9-Wire/18-Gauge Speaker Cable: The nine individually covered 18-gauge (46 strands) oxygen free copper wires are housed inside the black outer jacket. To ensure long-term performance, the oxygen-free copper wire has been tinned for enhanced corrosion resistance.The interior wire colors match standard aftermarket color codes -
- White (Left Front Positive)
- White with a black stripe (Left Front Negative)
- Gray (Right Front Positive)
- Gray with a black stripe (Right Front Negative)
- Green (Left Rear Positive)
- Green with a black stripe (Left Rear Negative)
- Purple (Right Rear Positive)
- Purple with a black stripe (Right Rear Negative)
- Light Blue (Amplifier Turn-On)
Notes: The outer jacket is 0.35" in diameter.
The Crutchfield CSW9W-20 replaces these items
All-in-one cable for speaker and amp installation (20 feet)
- 9 individually jacketed wires enclosed in outer PVC jacket
- includes wire for 4 speakers and an amplifier turn-on wire
- 18-gauge wire
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Customer Q&A
5 questions already asked
Q
I am running the Jl audio vxi1000x5 which would be 75w rms to each speaker. Jl audio c2 would this be ok being that it's only 18 gauge?
[ Christopher Oct 27, 2022 ]
1 answer
A
You are totally fine here, Chris. This is a HOT topic as of late, here at Crutchfield and on the forums. We actually did some testing in our Technical Support department and we found that at 100 watts RMS this 9wire only lost about 1-2 percent of the signal power, and we are fine with those numbers! You are good to go here on any full range amp 100 watts or less, and the ease of not having to rewire your whole vehicle is a major win for me. No worries here Chris.
[ Bo Oct 27, 2022 ] Staff
Q
I want to wire my speakers to an amp but using the factory head unit. Is there any other way to splice the speaker wire to this 9 wire bundle without cutting factory wiring?
[ Max Jun 22, 2022 ]
1 answer
A
Good question. There are some vehicles where we carry an adapter where you can easily add an amp without having to splice into your system. Please give us a call at 800.324.9695 to speak with one of our advisors to see if we have one that will work for your system.
[ ARIELLE H Jun 22, 2022 ] Staff
Q
I don't really need 20 feet length. Can I cut it to the length I need or do you sell a shorter version?
[ Derek Jun 11, 2021 ]
8 answers
A
Yes you can cut it to the specific size you need it for.
[ SANTIAGO Jun 28, 2021 ]
A
Just cut it to the length you need, it's still a bargain.
[ STEVEN Jun 27, 2021 ]
A
You'll have to cut it. just remember to measure twice.
[ JACK Jun 26, 2021 ]
A
Cut to length!
[ Timothy Jun 25, 2021 ]
A
Yes you can cut it to the sise you need it and it still works fine
[ GIOVANNI Jun 25, 2021 ]
A
You can cut it to what ever length you need
[ KELVIN Jun 25, 2021 ]
A
You can cut it, just strip back the outer black sheath to expose the inner wires.
[ STEVE CLIFTON Jun 25, 2021 ]
A
I cut mine to the length I needed for the install and saved the rest for the next project.
[ ROBBY Jun 25, 2021 ]
Q
I am replacing all 4 of my factory 6.5 speakers with 4 Kicker 6.5 CS series. I am debating from running them off of my JVC head unit or adding an amp. So, if I ran this 9 wire from the amp and tied into the factory speaker wires at the head unit. I will still need to run the RCA cables from the head unit to the amp correct? Or am I missing something. Thanks in advance.
[ BRADLEY Dec 10, 2020 ]
5 answers
A
Yes you will still need to run the rcas to the amp from the head unit I used these speaker wires to tie into my factory harness as well and made the install easier and cleaner
[ JONATHAN Dec 10, 2020 ]
A
Hi Bradley, I ran 2 of these 9 wires from the factory head unit without RCA's. It sounds like you have an aftermarket head unit so you would only need to run one 9 wire tied to the factory speakers at the head unit to the amp and then the RCA's from head unit to amp I believe. RCA's would be input and the 9 wire would be output.
[ Shawn Dec 10, 2020 ]
A
Yes, if you are using a separate 4 ch amp, you need to get a signal to the amp. If your head unit has RCT output and your amp RCT inputs, then yes you run RCA cables from head to amp. Alternatively, you can also use the same type of 9wire to tap from JVC speaker output to speaker input into amp(if speaker level input available) then 9wire back to head unit area to factory harness speakers (you would need two runs of 9wire in this case, one from head to amp and another from amp back to head area to factory speaker harness)..
[ MARK Dec 10, 2020 ]
A
Correct... You need the RCA's to send the signal to the amp. Then the 9 wire will bring the amplified signal back up to behind the HU. Tape up the speaker leads coming out of the HU and hook the 9 wire up to your speaker wire harness. The 9 wire is 5 color. Blue for your remote line and white, grey, green, and purple for the speakers. Good luck!!
[ RANDALL Dec 10, 2020 ]
A
That is correct you should run them from the amp to your factory speaker cables. you need an input to the amp (RCA) and an output to the speakers (this cable). While some amps support hi level inputs from speakers and this can be used in that situation, RCA is better.
[ Shane Dec 10, 2020 ]
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Very useful. You will want to use this to connect your headunit or LOC to your 4 channel amp. This bundle is nice because it includes a remote/power cable to be able to utilize the remote out portion of an active line out converter or from your aftermarket headunit to turn on the amp.
Taylor from Apex, NC