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One thing to remember about most radios, the RCA pre amp circuit will still work even if the mosfet power amp inside the radio does not. The best way to know if the amp inside the radio works is to use one matching color pair coming off the radio to wire up a random speaker right to the radio. You can use just about any old random 4 ohm speaker that is laying around to check it. The best solution if the amp inside the radio is blown is to replace the radio or amp the pre amp outputs with a small 4 channel amp. Oh, by the way. What vehicle are you connecting this into? And does the vehicle say Bose, Infinity, or ect sound or Premium sound? These usually denote a factory amplifyer already onboard and requires special connections to get the signal to these amps to then be delivered to the speakers.
FIRST OF ALL --- THERE IS A FEW THINGS YOU NEED TO KNOW BEFORE HOOKING UP A WOOFER LIKE THIS ---- IS THIS A STORE BOUGHT POWERED SUB WOOFER ? DOES IT HAVE IT'S OWN CROSSOVER BUILT INSIDE ?? I WOULD GUESS IT NEEDS TO BE HOOKED UP TO A SUB WOOFER OUTPUT FOUND ON THE BACK OF THE IN DASH PLAYER .. THE WOOFER NEEDS TO RECEIVE ONLY LOW FREQUENCY AUDIO WHICH MOST OF THE NEWER CAR STEREOS PROVIDE BY AN RCA JACK ON A SHORT WIRE COMING OUT OF THE STEREO ... IF YOU TRY AND TAP IT TO FULL RANGE SPEAKERS THAT ALREADY ARE CONNECTED TO AN AMPLIFIED SIGNAL THE SOUND WILL BE DISTORTED ....... POWERED SUB WOOFERS NEED A LINE LEVEL INPUT WHICH IS MUCH LOWER THAN SAY SPEAKERS ALREADY RECEIVING AN AMPLIFIED SIGNAL. POWERED WOOFER WILL ALSO NEED TO HAVE A 12 VOLT ELECTRICAL CONNECTION AND A GROUND WIRE TO OPERATE THE AMPLIFIER BUILT INSIDE. IF YOU HAVE NO EXPERIENCE WITH THIS TYPE OF HOOK UP I WOULD STRONGLY RECOMMEND SOMEONE WHO DOES [ CAR AUDIO SHOP ]
Radio Constant 12V+ Wire: Orange Radio Switched 12V+ Wire: Yellow Radio Ground Wire: Black Radio Illumination Wire: Gray Radio Dimmer Wire: Brown Radio Power Antenna Trigger Wire: Pink Radio Amplifier Turn On Trigger Wire: N/A Front Speakers Size: 6 1/2′ Speakers Front Speakers Location: Doors Left Front Speaker Wire (+): Tan Left Front Speaker Wire (-): Gray Right Front Speaker Wire (+): Light Green Right Front Speaker Wire (-): Dark Green Rear Speakers Size: 6 1/2′ Speakers Rear Speakers Location: Side Panels Left Rear Speaker Wire (+): Brown Left Rear Speaker Wire (-): Yellow Right Rear Speaker Wire (+): Dark Blue Right Rear Speaker Wire (-): Light Blue
Hope this info helps please let me know if you need any further info
two are for your speakers the other two for your amp. Left front: (+) yellow (-) brown right front: (+) violet (-) light green left rear: (+) red (-) green right rear: (+) pink (-) blue this should help.............
Check all wires. Make sure you connected RCA cables to the OUT of the cd deck and the IN of the amp. Common mistake. Be sure speaker wires are connected. Speaker to terminals inside the box, and then from the box to the amp. If you've been moving the speaker around thru installation, you might have knocked a wire off the inside of the box. I had some MTX's one time that broke the wires from the speaker terminasl to the cone itself. You know those braided flexable ones? Check those too. Amp fuses. You might have blown 1 fuse but still have another one or two that is allowing the power light to stay on. GOOD LUCK
Looks like the speaker is blown , or the wiring inside the speaker is broken. To test if the speaker is working, simply hook up the terminals to the ends of a AA, AAA or C battery. Speaker should make a noise, and the cone should push outwards ( or pull inwards, if the polarity of the battery is reversed). Also test the wires that are hooked to the amplifier with a speaker that you know is good working order, just to make sure that there is nothing wrong on the wiring, on that particular channel in the amp.
I don't think it would be your speakers. Speakers are only powered by the wires running from the head unit. Does your head unit stay on when your car is turned off? If so, you need an accessorised power source. One that only engages power when your car is turned to accessories. let me know.
You just have to check all of the speaker wiring.It's a wire touching somewhere and it will do that till you fix it. What it is is just where the negative wire which is the ground for your spreakers it's touching the positive wire which is know as a power wire.When this happends it lowers the frequency of the volume which will cause the speakers to cut out and volume level to drop.