If your car has a fiber-optic amplifier/sound system such as Harman-Kardon or Bose, just buy this Extension Power& Radio Cable to install, then this unit will work with your car speaker directly, factory optic fiber WON’T work again.
Please inform us for our which one Car DVD Player you buy this product in order or in payment, this is very important, we need to confirm if they are compatible before sending to avoid any trouble.
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