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Amp and subs cut out when I insert a cd in my radio

I installed a amp and subs in my car and its fine when I'm listening to the rodio but when I insert a cd the amp and subs dont work. Its a sony radio and a pioneer amp

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You have the amp connected to the blue wire on the radio instead of the blue one with the white stripe. The blue one is the power antenna wire so when you switch to cd, it would close a power antenna. If you dont have a blue /white wire, you can hook it to the red 12v wire. Good Luck

Posted on Mar 08, 2008

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When i have the stereo on radio my amp/subs work fine, but as soon as i switch the mode to USB ( built in ipod connector) it cuts out the power to the amp/subs. It only works on tuner mode (radio) why?


use the blue/white wire (amplifier remote turn on) instead of the blue wire (power antenna remote turn on) to turn your amp on. the power antenna wire shuts off when leaving tuner mode.

Mar 02, 2011 | Sony DSX-S100 Car CD/ MP3 Player

1 Answer

How many wires do you need to install rodio in truck ?


Let's see.. (1) Power (switched with ignition), (1) Power (always on to hold memory & time), (8) Speaker (2 wires per speaker), Antenna (coaxial cable). Now, the two power can be always on, but you'll have to remember to shut the radio off before you get out. You could have the radio power from a switched power source, but the clock will be wrong and all the station presets will be wiped outwhen the truck is shut off (no biggie if you're only going to listen to the CD player). You could get away with 4 speaker wires - one pair for the left speaker and one pair for the right speaker. The antenna is a must - unless you're planning on listening only to the CD player.

The rest, are optional. The power output lead is handy to turn on any external amplifier or to raise and lower a power antenna. If using an amp, you might want to use phono cables to send line level audio signals to it instead of using the speaker wires to do that - maybe use the speaker wires to drive dashboard speakers directly and use the amp to drive rear or door speakers.

In any case, I'd recommend purchasing a vehicle specific wiring harness. This will allow you to simply unplug your factory radio from the vehicle wiring. After you wire the new harness to the aftermarket radio, simply plug it into the vehicle wiring as if it were a factory radio. Easy as pie. Not cutting connectors off, crossing wires, etc. Plus, you get to plug your factory radio back in when it's time to sell - and move the aftermarket radio to your new car (after you buy the harness to connect it to the new car anyway). Some vehicles have a data bus that makes the radio an important part of the electronics for sending door chimes, key in ignition signals, etc., and require some pricey harnesses - but they are worth it in the long run. Please take a moment and rate this reply - thanks.

I hope this helps - good luck!

Dec 13, 2010 | Pioneer DEH-P6500 CD Player

1 Answer

Radio plays but plug in the rc jacks for the amp and subs and get this grounded out sound plug in different deck works perfect the deck worked fine a week ago


check for loose connections at your speakers and sub. If you have a loose connection, they can ground the other out... look closely for loose strands that may short it out. most of the amps have overload protection and cut out when there's a short/ground out issue..

I had this happen on my sub and it acted like the whole system was cutting out.

Nov 27, 2009 | Pioneer Car Audio & Video

1 Answer

My amp only powers the subwoofer when the radio is on but wont when the cd player is on


The person(s) who hooked up your system made a boo boo. They wired your remote turn on lead to the power antenna lead instead of the amp turn on line (both are blue and easy to mix up). Thus when your radio is on it sends a signal to the amp and the amp turns on, but when you set to CD the signal goes away and your amp shuts down. Easy fix, just re-wire the amp turn on lead and the problem will be fixed.

Jun 24, 2008 | Rockford Fosgate P3001 Car Audio Amplifier

1 Answer

Subwoofers not working While listening to CD


The remote turn on lead for the subwoofer amplifier has been connected to the power antenna lead (solid blue) of the radio. It just needs to be connected to the radios amplifier turn on lead (blue with white stripe).

Jun 14, 2008 | Kenwood DNX7100 Car Video Player

1 Answer

No sound from front speakers during CD operation.


I think you are using an external amplifier,if this is the case,you may be using the wrong remote wire for the amp.
Alpine use two blue wires,BLUE (only) this wire is for the pwr antenna and every time you insert a cd, this pwr line cut out.
BLUE/WHITE STRIPE this is the remote wire that you need to connect the remote of the amplifier.

thanks for rating

Feb 11, 2008 | Alpine CDE-9846 CD/MP3 Car Stereo

1 Answer

Amps wont stay on


try to look at the connection on the back of the cd player and make sure that the amp power wire is connected to the power wire on the wire harness on the back of the cd player and that should work but i only need one amp for a pair of 6by9s and subs try to bridge the speakers all to one amp that should cause it to sta on while in cd mode hope that helps

Dec 26, 2007 | Kenwood KDC-MP435U CD Player

1 Answer

Radio works cd/dvd does not.


What do you have your remote wire for your amplifier connected to?

Dec 05, 2007 | Panasonic CQ-VD7001U Car DVD Player

1 Answer

No bass at higher volume


Your battery should be fine! Although the amp might not be strong enough for the sub. All you can do is check the RCA cables from your radio to your amp as these might vibrate loose when you get to 17 volume and also check the monster cable from your amp to your sub asit might have vibrated loose as well.

Oct 21, 2006 | Pioneer GM-5200T Car Audio Amplifier

1 Answer

No Subs in CD mode??


Ah, common problem. You hooked up the remote turn on wire for the amp to the power antenna wire (solid blue). Hook up the remote turn on wire for the amp to the blue wire with white stripe. The power antenna only provides power when the deck is in tuner mode for the power antenna to be extended, intuitively, and cuts power in any other mode, because certainly it's only needed for AM/FM reception.

Sep 28, 2006 | Sony CDX-M8815X CD/Receiver/MP3 System

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