Question about Kenwood KTS-300MR CD Receiver

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Kenwood KTS-300MR Power problem

I have a Kenwood KTS-300MR on my boat, its is a little under 2 years old. The unit will not power on. I have checked the fuses and wiring on the unit and everything is fine going into the unit but it will not power on. I have pressed the reset button with no success either. Does anyone have any suggestions or does the unit just need to be replaced?

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  • worgiebear Apr 21, 2009

    I have the same problem with the same age of unit.

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1 Suggested Answer

sonicboomele
  • 1557 Answers

SOURCE: Kenwood KTS-300MR

you need to firstly trace the speaker wires to the unit to make sure there connected first. if they are then its a job for a car audio expert ( if there is such a thing) if the unit is connected to correctly to the speakers then there is an internal fault ..

Posted on Jul 03, 2010

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I have 4 wires, red (power(, black (ground), green (speaker), gray speaker...the stereo has these same color wires...so I connect the corresponding color. The boat has NO yellow battery wire that is on the...


(http://inform3.kenwoodusa.com/manuals%5CKTSMP400MR.pdf )
Here's a link to manual and wiring on page 30 on the PDF file.
Yellow is constant power from battery, for memory etc. Red should be to switched source.If need be, you can connect both to battery, but remember, you'll have constant power draw on battery when stereo left on but switch turned off, and will draw battery down, if you forget to shut it off, and leave the boat. Speaker negatives to black should work but I would advise hooking my 2 right and 2 left + speaker wires from stereo together, then to one of the speaker positives,right or left for better sound. Fronts will usually supply higher ( high and mid range), and rears will supply lower sounds (woofer) Joining them together will give better sound usually, when only using 2 speakers, on a 4 speaker stereo. You may want to test with them joined and not, to see what sound you like better.

Sep 26, 2010 | Kenwood KTS-300MR CD Receiver

1 Answer

Kenwood KTS-300MR


you need to firstly trace the speaker wires to the unit to make sure there connected first. if they are then its a job for a car audio expert ( if there is such a thing) if the unit is connected to correctly to the speakers then there is an internal fault ..

Jul 03, 2010 | Kenwood KTS-300MR CD Receiver

1 Answer

I wired additional speakers to my Kenwood car radio/cd player, that is in my boat. When I turned it on it played really loud and I could not turn it down. I turned it off and now it will not turn on. I...


When you connect multiple speakers to one channel it drops the impedance. A radio is designed to play at 4 ohms which would generally be one speaker. When you connect two speakers to one channel it drops to a 2 ohm load which can be fatal for a radio but not always

Jun 05, 2010 | Kenwood KTS-300MR CD Receiver

1 Answer

CALL on display


Hello plainolelow,

"CALL" is displayed whenever a telephone call is received.

This is controlled by the brown wire from the wiring harness, and is activated when your telephone system or bluetooth device adapter detects an incoming ring. Activation is a "ground" on the lead. If you do not have a telephone or bluetooth adapter attached, the wire is probably coming into contact with some other wire or metal that is causing it to be momentarily grounded.

Hope this helps.

Jul 17, 2009 | Kenwood KTS-300MR CD Receiver

1 Answer

The AUX stopped working. I can get CD and Tuner


I don't have a solution, but did you ever get this working again? I'm having the same issue. Thanks

Jul 12, 2009 | Kenwood KTS-300MR CD Receiver

1 Answer

Head Unit of boat stereo cutting out at higher volume


check your ground wire ..
then check battery has enough charge..
usually fault is in where your stereo is connected to your ground source.. good luck ,if no luck try your checking your speaker wires for a short..

May 14, 2009 | Kenwood Car Audio & Video

1 Answer

Volume buttons


the tact switches have failed to the vol up and down switches. This is common as they do the most work. replacing the switches will fix it

Dec 28, 2007 | Kenwood KTS-300MR CD Receiver

4 Answers

Volume turned up, kenwood shuts off briefly...


I had this same exact problem when my last older Kenwood Marine stereo cooked itself while I had it up loud for a few weekends on the lake. (smelled like it had burned inside). I went out and bought a new Kenwood KMR-550u stereo deck. (I do not have an additional amp). I hooked it up to the exact connections where my older Kenwood stereo unit had been hooked up, as I never had a problem with this for the past three years until it failed after smelling of burning elelectrical. I had chalked the problem up to heavy rain we had one day. Every time I turned up the volume, sometimes up to 27 out of 35 possible, or 29, or 32, the stereo would suddenly shut off as if I had turned it off. After a few seconds the stereo would come back on, but unless I was quick enough to turn down the volume it would do it again right away. Of course on a boat, we were beached in a cove and the engine was not running when I encountered this. I searched the internet finding hundreds of similar complaints and several dozen theories of all types, but only a couple that pointed me towards the power (voltage) idea as the problem. I put a volt meter on the positive & negative wires powering the stereo. I watched as I gradually turned up the volume, the voltage on the power wire gradually decreased from 12.5 volts, down into the 11 range, and as it hit 10.9 or 10.8 volts it shut off typically around a volume of 32. The red power wire in my boat that never seemed to have an issue with my old stereo until it fried was determined to actually be inadequate for the power flow for the new Kenwood, and probably was the culprit of my failed older unit. I offer this sound advice: Run a new pair of positive & negative wires directly from the battery (with an appropriate fuse of course (the deck has a 10 amp fuse in it's back so I would use that at the battery) to the stereo. Check the voltage as you turn the volume up into the high 20's and low 30's to ensure you are still getting voltage in the mid to high 11-12 volt range. The stereo is designed to require a minimum of 10.8 volts to operate, and when it drops below that it protects itself and shuts down.

Mar 24, 2007 | Kenwood Sirius KDC-MP522 CD Player

1 Answer

No Sound - boat stereo


Assuming that the four speakers are connected to the amplifier, then the amp is the most likely problem component. Does the amplifier show a power light when the system is turned on? Note that there is probably another fuse in the amplifier power wire, near the battery.

Mar 16, 2007 | iLO XM-MP3-CD Car Stereo

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