Question about Kenwood KSC-WA100 Car Subwoofer

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Connector Pin Out

I no longer have the harness for my subwoofer so I've decided I will make a new harness by soldering wires to the leads inside the amp. I need to know the pinout of the connector. Does anyone have that information?? I believe the 2 pins to the right when looking at the back of the subwoofer are power, but I'm not sure. Thanks!

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  • jankin990 May 28, 2008

    i need to know what pins go to what on my basstube, because i dont have the wiring harness



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I had the same problem.Here is the picture i used. Connector Pin Out - 7e83231.jpg

Posted on Jul 21, 2008


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Wait a minute. What?

From what I read;
1) One wire of the AC adapter (Charger) is hot to the touch.
'.....when I touch the charge one part of the wire is very hot."

2) AC adapter checks out as far as voltage is concerned.
"I tested the charger voltage and everything is ok."

3) "Sometimes when I touch the charge appear the icon...Could it be the charger broken wire?"

Does this mean, "Sometimes when I touch the AC adapter (Charger), the battery icon appears."?

Battery is CHARGING icon?

Could it be a broken wire in the power cable TO charger?

Uh, yeah.

1) AC adapter NOT plugged into the DC Power Jack, plug the power cable of the AC adapter into power.

Multimeter set to DC Voltage, and proper scale, red Positive lead to harness wire that goes to DC Power Jack's center pin;

,black Negative lead of multimeter, to wire that goes to DC Power jack's inside cylindrical metal shell;

Now gently wiggle the cable from the AC adapter, TO the DC Power Jack of the laptop.

Do you get an intermittent reading?

2) Also, how did you replace the DC Power Jack? What steps did you take?

Did you reuse the wire harness, and solder it to the DC Power Jack?
Have a lot of experience in desoldering/soldering?
What tools did you use?

25 Watt soldering iron?
.025 or .030 rosin core solder?

Desoldering Tool, or Desoldering Braid? (Solder Wick)
Side Cutters instead, and slightly shortened the wires of the DC Power Jack's harness?
(Then tinned the wires, and soldered the wires of the DC Power Jack harness, to DC Power Jack?)

Damp sponge, and cleaned the well tinned No.2 chisel tip, of the soldering iron, frequently? Used rosin solder flux?

Center pin wire (Positive), of harness cable TO DC Power Jack, was soldered to the center pin of the DC Power Jack?

Negative wire of cable TO DC Power Jack, was soldered to the inside shell of the DC Power Jack?
(Cylindrical shell, inside the DC Power Jack, that surrounds the center pin of the jack)

Sure there are no cold solder joints?

Not trying to 'browbeat' you, just am curious.

1) IF you are SURE you have the polarity correct, of the wires in the harness cable, that goes to the DC Power Jack;

,and you are SURE there is no broken wire, in the cable from the AC adapter (Charger) TO the DC Power Jack;

,and you are sure you made good solder joints;

I suspect the power correcting chipset on the motherboard, to be bad, or perhaps a Diode.

One example of the chipset I am referring to. This one is used in a lot of laptops. May not be used in yours, but gives you something to refer to when looking for a bad chipset, in the power stage, on your motherboard,

Usually when bad the top of the chipset will be blackened, or bubbled.
A Diode is a one way valve for electricity. When they go bad it is visually obvious.

Post your findings in a Comment.

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Looking for instruction to operate an Alpine MDA-W905JB head unit in a Japanese car I just bought.

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There may be RCA jack inputs in the back and these are for the subwoofer amp.
There will be a large black cable in the back and this is the antenna wire. Plug in the antenna wire from the back of the stock radio here. Yu may or may not need an adapter for this depending on the size difference between the wire and the hole it plugs into.
**Please note: if your car has a "premium" sound system that comes stock with an amplifier you will need to attach the power antenna lead from the alpine to the remote turn on lead on the harness adapter. If not when you turn on the radio/cd it will not turn on the stock amplifier and the speakers will not work.
I found this out with my 99 dodge avenger which has an Infinity stock radio. You can pop the trunk and look up at the back dash and see the small amplifier.
Once the radio is wired and the mounting bracket is installed, connect the harness adapter as well as the antenna wire. The new wiring harness adapter makes the wiring a little longer so you may have to stuff them back a little bit. Connect the harness from the alpine back into the back of the radio and slide the head unit into the metal sleeve until you hear a click. Before sucuring the mounting bracket and putting the trim back on it is a good idae to try the radio out so if there is something wrong you dont have to disassemble it again. When you buy the harness and bracket it will say on the packaging "nissan 84-94" or "Honda 83-99" or something similar. Look on the back for a complete list of compatable models.

Hope this was helpful. Please rate, and thanks!

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Hello. My ve 28s crackles when in standby mode, and also plays crackly bass. Please help me by telling me which component to replace within the amp. as I have no Cerwin Vega agent support here in South...

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I put an after market cd player in my 2003 acura 3.2 tl type s. all the speakers are working fine but i am not getting any sound out of the factory subwoofer, it is not working. any idead what i did wrong...

You got to connect the blue amp turn on wire. If still dont work. then you got to find the factory amp find the two wires that sends frequency signals to the amp. You will see a total of 7 wires. So you've got to use process of elimination. Use a multimeter.

1.Constant 12 Volt
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5. - output wires going to the - of the subwoofer
6 + input wires going to the radio harness
7 + input wires going to the radio harness

6 & 7 are like the rca's you plug in at the input of an aftermarket amplifier and and on the other end plug in the output subwoofer of the Radio.

So on a factory amp you wont see any RCA's its all wires. Once you find the first 5 just remember the last 2 wires.

If you want your radio to control the gain and volume of the Subwoofer get a long RCA plug it on the back of your radio that says sub output and then cut the other end of that RCA and connect the positive the + input wire on the amp and the negative to the negative input wire on the amp.

If you dont know whats positive or negative just go ahead and connect it and experiment. You will know if your in phase when the subs sound boomy. Then the connections are correct. If it sounds Tinney then the connection is out of phase. solder then tape all connections with black electrical tape. Dont leave any power wires exposed or else cause a short and blow fuses.

Good luck

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