Question about Car Speakers & Subwoofers

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Amp is in protect mode but it was intstalled and worked fine for almost 2yrs now having problem with it the blue light is on with the red flickering and then it goes to solid red

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Your audio amplifiers ICs are damaged you gotta change him.

Posted on May 06, 2008

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I have a kenwood subwoofer, the red light comes on but I am getting no sound, help?!


red light is usually bad like protection mode unless it is supposed to be red. amps are always green and red is protection indicator normally. look it up for your amp and if you bought it used you got ripped off

Mar 14, 2015 | Kenwood Car Speakers & Subwoofers

1 Answer

Kenwood kac-749s amp power indicator flashing red. what does this mean and what can fix it?


Either there is a short in the in the amp or hopefully just the speakers or wires going to the amp. disconnect any speaker input output and turn your amp back on(you will only have power, ground, and remote wires plugged in at this time) and if the red protect light goes away, then there is a problem with the input/output speaker wires, this includes your RCA's. If it's still flashing red then there may be a stray wire shorting to the amp in the speaker outs, other than that your amp may be fried. By the way, if it works without any speakers connected, including RCA's try connecting one component speaker at a time starting with your RCA's(if using them), speaker in, then speaker outs. If it turns into protect mode, note which speaker/RCA it was and replace or repair the short.

Jul 11, 2011 | Kenwood Car Speakers & Subwoofers

1 Answer

I have a 1800 watt kenwood amplifier an the red light on it blinks when i turn my volume up but i have no sound coming out of my subs an it did this while driving today an all the wiring is fine so idk...


sounds like wiring. could be two much sub for the amp. your sub max power should be less than amp max. from your description its trying to go into protect mode. trace wires, cheking for breaks , loose connections and such. also make sure your fuses are in all the way.

Jan 13, 2011 | Car Speakers & Subwoofers

1 Answer

I need a copy of the fuse box underneath the dashboard of a 2004 jeep grand cherokee lorado limited edition


Here You are...


Grand Cherokee fuses
1999-2004

Junction Block

Cavity Fuse Color Description
F1 -- -- Spare
F2 -- -- Spare
F3 10 Amp Red Headlight high beam left
F4 15 Amp Lt. Blue Flasher, hazard switch (see Junction Block diagram above for location of turn signal Flasher relay - Mopar p/n 4686094)

(Repair tip: WJ flasher repair)
F5 25 Amp Natural Radio amplifier
F6 15 Amp Lt. Blue Park lamps
F7 10 Amp Red Interior lights
F8 15 Amp Lt. Blue Overhead console, rear wiper, IP lights, rear flipper glass solenoid, power locks
F9 20 Amp Yellow Power outlets
F10 20 Amp Yellow Adjustable pedals (2002-2004 only)
F11 10 Amp Red Rear window defrost indicator
F12 10 Amp Red Auto shutdown relay / "Fuel"
F13 -- -- Spare
F14 10 Amp Red Headlight low, left
F15 10 Amp Red Headlight low, right
F16 10 Amp Red Headlight high, right
F17 10 Amp Red Instrument cluster, diagnostic connector
F18 30 Amp ? Trailer tow
F19 10 Amp Red Anti-lock brakes
F20 10 Amp Red Ignition Run / Heated seats / A/C Heater control / Flasher - Left and Right turn signal switch sense
F21 10 Amp Red Ignition Run / Start - PDC (Power Distribution Center)
F22 10 Amp Red Ignition Run / Start
F23 15 Amp Lt. Blue Brake switch
F24 15 Amp Lt. Blue Foglamps
F25 20 Amp Yellow Accessory delay relay (sunroof)
F26 15 Amp Lt. Blue Cigar
F27 15 Amp Lt. Blue Rear fog (export)
F28 10 Amp Red Body Control Module, Acc/Run
F29 10 Amp Red Rear wiper switch. Washer motors
F30 15 Amp Lt. Blue Radio
F31 10 Amp Red Ignition Start
F32 10 Amp Red Ignition Run / Start - Airbag
F33 10 Amp Red Ignition Run / Only - Airbag
C1 20 Amp Yellow Wiper (Circuit Breaker)
C2 20 Amp Yellow Seats (Circuit Breaker)
C3 -- -- Spare

Mar 07, 2010 | Car Speakers & Subwoofers

1 Answer

No sound from subwoofer Solo Baric L7


check the resistance of the sub with a digital multi meter, make sure you dissconect the sub from everything before you check the resistance, if your sub is supposed to be 4 ohms than it should be between 3-5 ohms, if it is under 1 that the sub is blown, while the sub is dissconected from the amp, turn the system on, does it still go into protection?

Jan 17, 2010 | Kicker Solo-Baric L7 10'' Car Speaker

1 Answer

My subwoofer quit on me and i cant get out any sound. i have a alpine stereo and two amp looking things in the back


I could be a number of things, first of all if the red light on your amp is on when the car is powered up your amp is in protect mode and you either have a bad sub or amp, if your amp does not even turn on you have a fuse blown somewhere

Aug 21, 2009 | Car Speakers & Subwoofers

1 Answer

I have an older red sony xplod 500w 4ch amp. the power/protection light is glowing red. what does that mean and how do i fix it? I have no sound.


The protection light comes on if the amp overheats or if the speaker outputs are shorted.

Turn everything off and check all of your speaker wires for shorts. When you locate and repair the short, the protection light should go out and your amp will work normally again.

Hope this helps!

Mar 26, 2009 | Car Speakers & Subwoofers

1 Answer

Intstall sub and amp


ok not much info but
u need a red thick wire with a fuse from positive on battery to positive on amp
thick black ground wire from negative on amp to car body
remote wire from remote on amp to remote on back of head unit
rca leads from back of head unit to amp
then hook up sub

Jul 02, 2008 | Car Speakers & Subwoofers

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