Question about Infinity 475A Car Audio Amplifier

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Wiring Advice Please can you help??I want to wire my new amp into my exisitng system - I wanted the amp to drive the front two speakers and a subwoofer.I have wired in the front channel input and output (easy!) but what do I then do with the subwoofer? can i wire it straight into the rear output of the amp, set the filter to LPF and adjust freuency and bass boost??? Im conbfused with the dials are these to adjuct inputs or outputs??

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All that you need to do is hook the rca to the in of the read input of the amp and hook the woofer up you may bridge the woofer but look at RMS of the amp on one changel and times it by two and make should that the RMS of the bridge dose NOT rich the MAX of the sub if it does then you will blow the sub it is your chors on wha you want to do. Now turn the filter to then the LPF and turn the gain up first and then the the freuency but DO NOT turn it all the way  ONLY go about half way up and at last you can turn the bass boost up but it will make it sound bad if you turn it all the way up.

Posted on Oct 29, 2007

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They are to adjust output levels. yes you can hook up the sub to the amp. it is not wise to hook up the front speakers with the sub though. just get a less powered amp to drive the front speakers. 

Posted on Oct 29, 2007

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1 Answer

Need help with installing aftermarket amp and subwoofer


not sure how large amp is but need to find an out of the way place to locate. then figure where you want the speakers located.on the larger amps the amount of power will destroy factory speakers. If you put the amp in the back locate the factory speakers[ left and right channel] that are
closest to the amp
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and a switch to turn off amp.if amp is on all the time ,it will run the battery down overnight.Let me know if that helps

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I need the wire color codes for a 2008 ford focus, for the stereo! please help me!


OK HERE IS THE WIRING COLORS I SHOW, I WILL CAUTION U THAT THIS RADIO IS PART OF THE COMPUTER CONTROL SYSTEM OF THE DASH LIGHTING AND U CAN'T JUST PLUG ANY RADIO IN, CONTACT A CAR STEREO SHOP FOR COMPATABLE MODELS

2008 Ford Focus Car Stereo Wiring Diagram
Car Radio Battery Constant 12v+ Wire: White/Red
Car Radio Accessory Switched 12v+ Wire: Gray/Orange & Violet/Orange (This vehicle uses the can data network for accessory turn on.)
Car Radio Ground Wire: Black/Blue
Car Radio Illumination Wire: Gray/Orange & Violet/Orange (This vehicle uses the can data network for illumination and dimmer controls.)
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Car Stereo Amp Trigger Wire: Violet/Red
Left Front Speaker Positive Wire (+): White
Left Front Speaker Negative Wire (-): White/Brown
Right Front Speaker Positive Wire (+): White/Violet
Right Front Speaker Negative Wire (-): White/Orange
Left Rear Speaker Positive Wire (+): White/Green
Left Rear Speaker Negative Wire (-): Brown/Yellow
Right Rear Speaker Positive Wire (+): Brown/White
Right Rear Speaker Negative Wire (-): Brown/Blue

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I have a 92 ford probe and im trying to install a


Have you removed the original connector from you original stereo? If you still have the original connector in place you can get a new connector from the Ford dealer that will plug into your existing wiring and into your new deck. Ford connections are unique to Ford and you need to adapt them for this application.

Take the car and deck to the dealer and tell them what you need. Everything just plugs in and your original amp and speakers in the car will work.

Having said that there was an adapter available at Wal Mart of all places that did work. You may want to check there.

If you have removed the original connector then you need a wiring diagram.

1992 Ford Probe Car Stereo Radio Wiring Diagram
Radio Constant 12V+ Wire: Blue/Red
Radio Switched 12V+ Wire: Blue/White
Radio Ground Wire: Chassis
Radio Illumination Wire: Light Green/Black
Radio Dimmer Wire: N/A
Radio Power Antenna Trigger Wire: White
Radio Amplifier Turn On Trigger Wire: N/A
Front Speakers Size: 6 1/2′
Front Speakers Location: Doors
Left Front Speaker Wire (+): Blue/Orange
Left Front Speaker Wire (-): Blue/Black
Right Front Speaker Wire (+): Blue
Right Front Speaker Wire (-): Blue/Green
Rear Speakers Size: 6 1/2′
Rear Speakers Location: Side Panels
Left Rear Speaker Wire (+): Green/Orange
Left Rear Speaker Wire (-): Green/Red
Right Rear Speaker Wire (+): Green/Blue
Right Rear Speaker Wire (-): Green

The amp is located under the rear passenger side window. You need to remove the plastic side wall to expose it if you need access there. You can trace the wiring if needed.

Under the front bottom edge of the rear seat are clips holding the seat in place. Open the clips and the seat lifts off. You can then get to the amp as needed.




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Looking for a diagram/schematic for the stereo wiring, so i can reinstall my new cd/stereo player


I hope this would help you: 1999 Chevrolet Silverado C1500 Car Stereo Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: Brown
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
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Car Audio Front Speakers Location: N/A
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Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

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2002 hyundai elantra factory stereo wiring colors


2002 Hyundai Elantra Car Stereo Radio Wiring Diagram
Radio Constant 12V+ Wire: Red
Radio Switched 12V+ Wire: Yellow
Radio Ground Wire: Black
Radio Illumination Wire: Pink
Radio Dimmer Wire: N/A
Radio Power Antenna Trigger Wire: Gray/Orange
Radio Amplifier Turn On Trigger Wire: N/A
Front Speakers Size: N/A
Front Speakers Location: N/A
Left Front Speaker Wire (+): White
Left Front Speaker Wire (-): Brown
Right Front Speaker Wire (+): Green
Right Front Speaker Wire (-): Orange
Rear Speakers Size: N/A
Rear Speakers Location: N/A
Left Rear Speaker Wire (+): Yellow
Left Rear Speaker Wire (-): Black
Right Rear Speaker Wire (+): Orange
Right Rear Speaker Wire (-): Blue

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1 Answer

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Here are the wiring colors but just before you connect it please make sure the colors match
1999 Daewoo Lanos Car Stereo Wiring Guide
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Brown/White
Car Stereo Dimmer Wire: Dark Green
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Brown/White
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Brown/White
Right Front Speaker Negative Wire (-): Gray
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue/Black
Right Rear Speaker Negative Wire (-): Yellow/Dark Green

Jan 04, 2010 | Daewoo Lanos 1999 Car Radio/stereo...

1 Answer

I have a BMW 318i 1993 and when i got it there was a big speaker and amp hooked up. I unhooked it but now i cant get any sound....the radio lites up but no sound. i know speakers work cuz they worked...


Hello pinkpimpin20,

Without knowing exactly what modifications were made to the factory sound system, it's difficult to point you to a particular fix. The number of channels on the "big amp" that you disconnected would help. Even the make and model.

But, from your description it's possible that the previous owner installed a multichannel amp to drive both the "extra bass speaker", usually referred to as a subwoofer, and the original vehicle speakers. In that case, the speaker wiring from the head unit (receiver) was cut and the receiver side of the wires was rerouted to the input of the aftermarket amp. The output of the amp was then connected to the other ends of the speaker wiring.

To restore to the original, you need to pull the stock receiver and resplice the wiring. If the previous owner cut the plug completely, it may be necessary to purchase a replacement from your BMW dealers service or parts department. It's possible, but not likely that the previous owner used both an aftermarket "harness" and an aftermarket "reverse harness" to avoid having to cut the wiring. In that case, all you'd have to do would be remove them and plug the radio harness back into the vehicle harness (or the back of the radio). But most DIY audio enthusists don't mind butchering the vehicle wiring. And you'll probably find that electrical tape was used to secure the wiring. After a year or so under the dash, it'll be a sticky mess to unravel.

The speaker wiring colors for the '93 318i are as follows:

Left Front Speaker Wire (+): Yellow/Red
Left Front Speaker Wire (-): Brown/Orange
Right Front Speaker Wire (+): Black/Red
Right Front Speaker Wire (-): Brown/Orange
Left Rear Speaker Wire (+): Yellow/Black
Left Rear Speaker Wire (-): Black/Orange
Right Rear Speaker Wire (+): Blue/Black
Right Rear Speaker Wire (-): Brown/Orange

Hope this helps.

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1 Answer

Wiring Speaker to amp


remove all speaker connections to your amp. MAke sure the inputs are driving all 4 channels, and that the built in crossovers on the amp are all set to full range. Conect your full range speaker to each output channel one at a time and verify there is oputput on all 4 channels. If all is ok, then connect your rear speakers to the front(a) outputs of your 4 channel amp, and then use the second 2 channels (rear or B) bridged to drive the sub. Re-configure the crossovers for highpass for front (to drive your rear speakers) and lowpass for sub. This is the proper way to connect a 4 channel amp with a sup whle driving 2 full range speakers.

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2 Answers

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This is from a 2004 Solara, but it's probablly the same.

2004 Toyota Solara Radio Wiring Chart
Car Radio Battery Constant 12v+ Wire: Blue/Yellow
Car Radio Accessory Switched 12v+ Wire: Gray
Car Radio Ground Wire: Brown
Car Radio Illumination Wire: Dark Green
Car Stereo Dimmer Wire: White/Green
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Pink
Left Front Speaker Negative Wire (-): Violet
Right Front Speaker Positive Wire (+): Green
Right Front Speaker Negative Wire (-): Blue
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Black
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Red
Right Rear Speaker Negative Wire (-): White

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