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Amp hey im tryint to install a sony amp to my 2002 gti without changing the radio by using a nsi-35 output converter. i have it hooked ut like it saids to the speaker wires, but i still got no sound coming from the subs.

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Its a must to change your radio to an aftermarket radio because its safer and it has an rem wire that for the amp and subwoofer, if you run it a factory radio then the sound if any will be the voice and everything so it will sound distorted and crappy with abnormal bass

Posted on Sep 16, 2008

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My amp has power but then immediately goes red into protect mode.


Ok, being an old-school "back yard" installer when i began, gave me 2 immediate possible diagnosis for your problem. I was running a Kicker zx550.3 amp to 2 Polk DB 12'inch Subs rated 600w max 1500w. I also used a LOC converter (Line Output Converter) in order to use my stock Bose stereo since it did not have RCA outputs. Now shortly after running this setup (approx 2 weeks) I noticed a substantial drop in sound output and also noticed some ground noise/distortion coming thru the subs. After tracing my wires that connected my LOC to the Amp, and Rear Speaker Wires of my Radio to the LOC, I noticed that by jostling the wires there was a connection issue. If you are using your factory radio to power your regular component speakers (tweeters, coax, mids) then chances are your stereo feeds into a FACTORY INSTALLED amplifier. If thats the case, then you need to access a Wiring Diagram for the Harness coming off the Factory Amplifier! Once this is viewable, check the wiring and locate the "Amplifier to Radio Signal Wires" and also the "Amplifier to Speakers Signal Wires" ... Now go back to your LOC and look at the wires you tapped to get the Line Signals to the converter, and make sure that you havent tapped your lines off of the AMPLIFIER TO SPEAKER wires. These wires carry a small electrical current because they are coming powered from the Amplifier, and most Line Output Converters are PASSIVE, which could short the signal the LOC creates thus reducing your signal gain, but does have the capability to surge back to the Factory Amplifier, which could possibly melt the shielding of the factory wiring, and thus allow your signal to cross or ground out! If you can, try running another RCA input to your Sub-Amplifier from another source other than your car, and see if your protection lights go out and the amp returns to normal operation. If so then your LOC or Factory amp is to blame. If not, then the second diagnosis is much simpler, which is your Alternator current has been reduced due to many different possibilities, and you should acquire a .5 or 1 Farad Stiffening Capacitor which will reduce the excess draw from your charging system. But due to the first solution being my problem exactly, im willing to bet your's lies along the same variables... GL to you!

Apr 21, 2010 | Sony Car Amplifiers

2 Answers

How do i hook up the amp wires to the factory stereo and the speaker wires


Amp wires are direct to battery..as far as sound, you need a line level converter to connect to your rear speaker wires (left/right) that sends the signal to the converter and switches it to RCA level outputs. You would then just connect an RCA cable from the converter to the amp and there you go. A converter is $20-$50 depending on the quality you want. The better ones connect to pos/neg and have a metal caseing.

Nov 05, 2009 | Rockford Fosgate 800.2 Car Audio Amplifier

1 Answer

My kac 7202 amp turns on but nothing comes out with everything hooked up


Use process of elimination. Connect the speakers that are hooked up to your amp directly to the radio, if they work check your amp. Make sure the rca jacks are connected properly. Sometimes the radio has rca's that are "inputs", make sure they're connected to the "output" rca's. If those are ok, your amp may be faulty. Try the amp on your friend's car see if it works. If it doues your radio might be at fault...or just bad rca cables. like i said, use process of elimination to narrow down the faulty equipment.

Sep 14, 2009 | Car Amplifiers

1 Answer

Hooking up system to a factory infinity sound system in a jeep grand cherokee.


Tap into a signal wire (rear speaker wire) using a line level converter.
These convert the High level speaker wire output into low level RCA output that is accepted by your amplifier.
c5b61ef.jpg Get a good one Pacific Accessory Corporation (PAC) sni-35 is the best IMO.
The TRUNK-LOC is the SAME as the SNI-35 - but it incorporates a voltage sensing input - so you dont need to run an additional turn-on wire. The voltage is sensed through the speaker wire - and it turns on the amplifier.

Then you will need a fused power wire from the battery,
Ground to chassis, and remote turn on lead (if you use a standard line level adapter).

An amplifier installation kit will give you everything you need to add 1 amplifier (except the converter)

Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

May 22, 2009 | Diamond Audio D5-1200.1 Car Audio...

1 Answer

I have a rockwood Amp-479X, need directions to install


Hello william_pric,

Look on the speaker output terminals to see if there is an indication, usually a line between the positive (+) on one to the negative (-) on the other, with the word "bridged". If the bridging terminals are not indicated, you can always try one of the positives and the other negative. If there's no sound, it must be the other two terminals. Just be careful that you don't short the terminals, and don't crank the volume up without the sub connected. Some amps don't like an infinite load.

For an input to the amp from a stock OEM radio, your best solution is to use a "line out converter", connected to the rear speaker wires. The PAC SNI-45T shown in the link is one such device. This one includes a "remote turn-on" lead for the amp. You could use a cheaper LOC and just run 12V from an accessory lead on the truck. In this case, the amp will turn on and stay on whenever the ignition switch is in the "on" or "accessories" position. If this is objectionable, mount a SPST switch somewhere convenient and wire the turn-on wire through it.

Hope this helps.

Apr 28, 2009 | Rockwood AMP-479 2 Channel Bridgeable...

1 Answer

How do i install an interfire IB2400c amp?


Hello blown1914,

That appears to be a good amp and should power your subs with no problem.

You will want to install a line-level converter to your stock speaker outputs and use RCA cables to the amp. Here's a link to SonicElectronix line-level converters. The PAC SNI-35 is OK if your stock radio has a remote turn-on lead. If not, you should probably look at the PAC TRUNK-LOC. It still a 2-channel line output converter but also includes a trigger output to power on your amp.

http://www.sonicelectronix.com/cat_i331_line-out-converters.html

I tried Interfire's web site to see if they have a downloadable manual for your IB2400c amp. I could not find it, so it may be that it is no longer in print or no longer available.

You may want to go to their support page (link attached) and send them an email.

http://www.interfireaudio.com/contact.html

Hope this helps.

Apr 12, 2009 | Car Amplifiers

1 Answer

How do i know if my amp is blown


Hey Yoo,

 

Go to Radio shack and get you an adapter that will take an earphone jack and convert it to RCA male.  You use this to simulate the signal coming from the reciever.  Hook up to a Cd player or Walkman, anything with an earphone output jack. Test that the device actually puts out music or anything worth listening to.  Connect the device to the input of your amp, with the car running, and the reciever turned on.. This will tell yo if the signal is getting from the reciever to the amp. You may not be getting signal from the head unit. 

If you still get no sound to the woofers, dsisconnect the woofers and try a different speaker.  If that speaker dont work,  Change setting and switches., and if you still get no sound, then your amp is toast.

Oct 23, 2007 | Sony Xplod Car Audio Amplifier XM-DS1300P5...

1 Answer

Red light 2


Probably not, as i said there are no user serviceable parts inside this unit. If the units worth it to ya take it in to be estimated. Good Luck

Jun 13, 2006 | Sony Xplod XM-554ZR Car Audio Amplifier

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