Kenwood no sound

Sounds like you are drawing more watts than the alternator and battery can supply!

It's electronic fuel injection so it needs power to run. Mercury is usually a yellow wire from stator that goes to a voltage regulator that charges battery when running. Good luck!!

Just had the same thing happen to my new pioneer system. My truck battery died because I was jamming to the new installation, and the system just suddenly turned off. I charged the battery and the unit came on all the lights menus and displays worked like normal but there was no sound coming from the speakers. I checked all the fuses in the truck but none were burnt out. So I remembered there was a fuse on the back if the unit so I had to pull the unit back out. I checked the fuse and it was fine. I unplugged the wiring harness from the unit, plugged it back in and IT WORKED so I'm not sure exactly what was wrong with it, but I suspect when I unplugged the harness it reset the unit. So maybe this will work for your installation as well. Not exactly a high tech answer but maybe it will help ya! Good luck

Need to get a new steering wheel wireless to communicate with the existing Kenwood KDC-225MR.

Sounds like it's just a bad battery. Have you tried relacing it?

Hi,

A possible method would be to hardwire a rechargeable 12V battery to the yellow wire and ground. The rechargeable does not necessarily have to be high capacity, Actually, a series of 10 AA 1.2volts penlight battery would do the job. Alternately, a small motorcycle battery would probably be better. Wiring wise, pls reference below diagram.

Just a start, do postback how things turned up or should you need additional information. Good luck and Thank you for using FixYa.

Answer for Your trouble on http://www.fixya.com/support/t1354659-unlock_code

did you check all fuses already?

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.

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.