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I have a kenwood head unit with 3 rca outputs,front,rear and sub.my crossover is a kicker kx3 and it only has front and rear in and front,rear and sub out.my question is how do i hook up the crossover since it only has 2 inputs?should i not use the sub out rca coming from the head unit and just run front and rear and then from crossover hook up sub from sub out???? i am also running two amps,one for sub and one for highs,thanks

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No. I would recomend running front and rear to the crossover. Use the sub out on the deck so you have total control of subwoofer output at your fingertips. Your deck should have at LEAST an 80hz crossover built in. Any further fine tuning can be done at the sub amp.

Larry T
Winona Lake,IN
http://www.cybersoundsaudio.com/cybersounds/vehiclepics.html

Posted on Jan 28, 2009

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Is the speaker wire on a Kicker PT250 used to play the sub or to add speakers


It's an amplified sub unit all you should need is a set of RCA cables from the head unit and a power cable and earth in.

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Tip

How To Diagnose No Sound Output From Your Vehicle Stereo


  1. Check each Subwoofer or Speaker that isn’t working for continuity - At the subwoofer or speaker, one at a time, test the terminals for Continuity using your Digital Multi-Meter; if your DMM doesn't have a Continuity test, use the Resistance, or Ohms, test and check for Resistance in the Subwoofer Coil (be sure to disconnect the subwoofer wiring before performing these tests).
  2. If they test out good, hook the wires back up and test the terminals at the terminal cup or at the Amp hookup if you didn’t use a terminal, don't hook it up to the amp yet. Sometimes the wiring inside the box can be a problem if it has come loose, or isn't making a great connection.
  3. If you have a Sub or multiple Subs with Dual Voice Coils, or multiple Subs with Single Voice Coils, make sure your wiring is correct by checking here: http://www.the12volt.com/caraudio/woofer_configurations.asp
  4. Make sure there are no Hi-Pass filters, crossovers, or multi Channel switches enabled.
  5. Replace your RCA cable/s with known working RCA cable/s from the Source/Head Unit to the Amplifier/s.
  6. Check your Head Unit settings; make sure the Bass is turned up and/or the Subwoofer setting is turned On.
  7. If you are still getting no output, try plugging in an MP3 player or CD player using a headphone to RCA adaptor and check for sound output. If there is still no output, your Amplifier outputs are probably burned out.

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I have a 2003 mustang gt convertable and changing out the head unit with a Sony 540 Xploid unit. I have the metra 70-5519 harness. on the back of the head unit it has an out put for the rear subs and a out...


You shouldn't have to buy y connectors. The sub output on the back of the sony head unit is for bass output that goes to an amplifier & then to a sub. The RCA's on the harness will be just for Stereo sound ( left & right ).

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So you wanna run the subs off of the rear pre amp output rather than just the sub out correct? just get a splitter and run both the rear speakers and sub off of rear channel and front off of front channel. or run all four off of front and subs off rear output. this should give you the sound you want

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Can i connect the amplifier and subwoofer to the built ford fiesta radio


If your amp has rca jack inputs only you will need in-line filters to reduce the stock stereo speaker outputs down to less than 3 watts. If your amp has high power inputs you can use those. If your amp does not have a built-in crossover then you will need to install a low-pass crossover or filter before the amp so the only the bass comes thru or the sub woofer will have major distortion. Another problem is the amplifier needs a turn-on signal for the blue wire and most factory radios do not have one. That means you will have to tie that wire into the switched 12v wire from the vehicle so the amp comes on when the key is switched on. It can be done be done but I don't think you will be very impressed with the sub due to most factory stereos have a limited bass range. Most aftermarket head units have built-in crossovers and sub outputs. They also produce much better sound than the factory unit. So in other words yes you can.

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I have a jvc KD-G320 deck and need help hooking up subs...


Hello c92bivens,

While your KD-G320 does not have a specific subwoofer output, Kenwood did make provisions for adding one. There are two stereo pairs of line outputs on the back, one each for front and back. On the set for the rear, you can select a "line output mode" of "REAR" for normal speakers, or "WOOFER" for operating a sub.

Page 14 of your owners manual details the setting procedure while page 31 shows the connections. The manual incorrectly refers to the FRONT line outputs on page 14. Use the REAR line outs instead. If you do not have a manual, you can download the PDF version here at Crutchfields's web site. Ignore the "DISCONTINUED" notice (it's an old head unit), and scroll down the left just under "What's in the box" and click the "download owners manual" link.

Hope this helps. If it does, please rate as "FixYa".

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I just bought a KDC MP-235 to put in a 95 camaro with bose amplified speakers. I ordered a amplifier intergration component to reduce the output of the 50 watt per channel head unit as to have better...


Hi,

Yes, the Kenwood KDC MP-235 has two (2) line level outputs (RCA types red & white). However, these outputs internally passed through an electronic crossover/filter making them appropriate for subwoofer amps only.

If your unit is an MP-235CR, then the same outputs would be for the rear amp (not subs) and are full range (unfiltered).

If indeed your unit is an MP-235 and if I may make a suggestion, still connect the Kenwood to four (4) speakers. It would not be technically correct to leave the internal amps operating with no load (speakers) connected. Additionally, you would be getting 200 watts (4 X 50) more to your system (since it is already there).

If your Bose amp & speaker are subs, then no issue, however if the Bose is for a full range of speakers, then only the woofer part would be working efficiently.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

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