Question about Car Speakers & Subwoofers
SOURCE: installed a SONY CDX-GT100
I'm sorry that there is no audio when playing CDs. If you are experiencing a "no sound" situation when switching to
CD or Aux sources in systems that are utilizing a factory amplifier, check to
make sure you're not using the antenna remote turn on to activate the factory
amplifier. This will turn the amp on ONLY when Tuner is the selected source.
Once switched to CD or Aux, the antenna control is switched off (which in turn
switches the factory amp off), resulting in silence.
To wire the system so the amps turn on, you must splice the blue antenna turn on lead to both the red 12V accessory wire on the Sony harness and the 12V accessory wire from the vehicle. This will turn the factory amplifier on anytime the key is in the "Accessory" position or the car is turned on.
Please note: This wiring scheme will cause the amplifiers to always be on ANY time the car is in "Accessory" mode or the car is turned on. Because of this, the customers may experience some hissing, buzzing, or engine noise through the speakers even if the receiver is turned off.
The Ideal Solution
The correct way to solve this problem is to either bypass the factory amplifier or use a Sony amplifier that is equipped with "High Level Sensing On Inputs." This will enable the amps to only turn on when there is a signal coming from the receiver. If no signal is detected, the amps will cut sound to the speakers, thus, eliminating unwanted hissing, buzzing or engine noise when the system is turned off.
Thanks for understanding.
Posted on Jun 19, 2011
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