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Best Buy customers often prefer the following products when searching for modulators.

A modulator is a device that changes the amplitude, frequency, or phase of a signal. It is used in radio and audio systems, as well as in electrical engineering and telecommunications. A modulator may be part of a larger system, such as a transmitter or receiver, or it may be a separate device. Browse the top-ranked list of modulators below along with associated reviews and opinions.

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  1. PAC - Radio Replacement and Steering Wheel Control Interface for Select Chrysler, Dodge, Jeep, and RAM Vehicles - Blue - Front_Zoom

    Product Description

    Easily replace the factory radio in your Chrysler, Dodge, Jeep, or RAM vehicle with this all-in-one Radio Replacement and Steering Wheel Control Interface by PAC. The RadioPRO4 RP4-CH11 interface comes pre-loaded with amplifier retention and steering wheel control software, navigation-based output signals and more to help simplify installation while retaining your vehicle’s factory features.
    See all Radio Replacement Modules

    Product Description

    Easily replace the factory radio in your Chrysler, Dodge, Jeep, or RAM vehicle with this all-in-one Radio Replacement and Steering Wheel Control Interface by PAC. The RadioPRO4 RP4-CH11 interface comes pre-loaded with amplifier retention and steering wheel control software, navigation-based output signals and more to help simplify installation while retaining your vehicle’s factory features.
    See all Radio Replacement Modules
    See all Radio Replacement Modules
  2. PAC - Radio Replacement and Steering Wheel Control Interface for Select Ford, Lincoln, and Mercury Vehicles - Blue - Front_Zoom

    Product Description

    Easily replace the factory radio in your Ford, Lincoln, or Mercury vehicle with this all-in-one Radio Replacement and Steering Wheel Control Interface by PAC. The RP4-FD11 comes pre-loaded with amplifier retention and steering wheel control software, navigation-based output signals and more to help simplify aftermarket radio installation while retaining your vehicle’s factory features. This RadioPRO4 interface also allows programming of two radio functions for each steering wheel control button.
    See all Radio Replacement Modules

    Product Description

    Easily replace the factory radio in your Ford, Lincoln, or Mercury vehicle with this all-in-one Radio Replacement and Steering Wheel Control Interface by PAC. The RP4-FD11 comes pre-loaded with amplifier retention and steering wheel control software, navigation-based output signals and more to help simplify aftermarket radio installation while retaining your vehicle’s factory features. This RadioPRO4 interface also allows programming of two radio functions for each steering wheel control button.
    See all Radio Replacement Modules
    See all Radio Replacement Modules
  3. PAC - Radio Replacement Interface for Select GM Vehicles without OnStar - Blue - Front_Zoom

    Product Description

    Easily replace the factory radio in your vehicle with this Radio Replacement Interface for Select GM Vehicles without OnStar by PAC. The C2R-GM11 allows you to install an upgraded aftermarket radio while retaining the factory-installed amplified audio system and other factory features such as safety warning chimes. This radio replacement interface also provides data-controlled accessory outputs such as retained accessory power (RAP) and illumination.
    See all Radio Replacement Modules

    Product Description

    Easily replace the factory radio in your vehicle with this Radio Replacement Interface for Select GM Vehicles without OnStar by PAC. The C2R-GM11 allows you to install an upgraded aftermarket radio while retaining the factory-installed amplified audio system and other factory features such as safety warning chimes. This radio replacement interface also provides data-controlled accessory outputs such as retained accessory power (RAP) and illumination.
    See all Radio Replacement Modules
    See all Radio Replacement Modules
  4. PAC - Radio Replacement and Steering Wheel Control Interface with OnStar Retention for Select GM Vehicles - Blue - Front_Zoom

    Product Description

    Easily replace the factory radio in your GM vehicle with this all-in-one Radio Replacement and Steering Wheel Control Interface with OnStar Retention by PAC. The RadioPRO5 RP5-GM41 interface comes pre-loaded with OnStar retention, steering wheel control software, navigation-based output signals and more to help simplify aftermarket radio installation while retaining your vehicle’s factory features. Antenna adapter not included.
    See all Radio Replacement Modules

    Product Description

    Easily replace the factory radio in your GM vehicle with this all-in-one Radio Replacement and Steering Wheel Control Interface with OnStar Retention by PAC. The RadioPRO5 RP5-GM41 interface comes pre-loaded with OnStar retention, steering wheel control software, navigation-based output signals and more to help simplify aftermarket radio installation while retaining your vehicle’s factory features. Antenna adapter not included.
    See all Radio Replacement Modules
    See all Radio Replacement Modules
  5. PAC - Radio Replacement and Steering Wheel Control Interface for Select GM Vehicles - Blue - Front_Zoom

    Product Description

    Easily replace the factory radio in your GM vehicle with this Radio Replacement and Steering Wheel Control Interface by PAC. The RadioPRO4 RP4-GM11 interface comes pre-loaded with amplifier retention and steering wheel control software, navigation-based output signals and more to help simplify aftermarket radio installation while retaining your vehicle’s factory features.
    See all Radio Replacement Modules

    Product Description

    Easily replace the factory radio in your GM vehicle with this Radio Replacement and Steering Wheel Control Interface by PAC. The RadioPRO4 RP4-GM11 interface comes pre-loaded with amplifier retention and steering wheel control software, navigation-based output signals and more to help simplify aftermarket radio installation while retaining your vehicle’s factory features.
    See all Radio Replacement Modules
    See all Radio Replacement Modules
  6. PAC - Universal Trigger Output Module - Black - Front_Zoom

    Product Description

    Simplify installation with this Universal Trigger Output Module by PAC. The TR-7 provides three trigger outputs including one positive 12V at 2A and two negative outputs rated at 150mA that can be programmed for pulsed, latched, or timed outputs. Timed outputs are programmed by number and can be programmed up to four minutes and 15 seconds. There are two input triggers, one positive and one negative.
    See all Radio Replacement Modules

    Product Description

    Simplify installation with this Universal Trigger Output Module by PAC. The TR-7 provides three trigger outputs including one positive 12V at 2A and two negative outputs rated at 150mA that can be programmed for pulsed, latched, or timed outputs. Timed outputs are programmed by number and can be programmed up to four minutes and 15 seconds. There are two input triggers, one positive and one negative.
    See all Radio Replacement Modules
    See all Radio Replacement Modules
  7. PAC - Radio Replacement Interface with OnStar Retention for Select Cadillac Vehicles - Blue - Left_Zoom

    Product Description

    Easily replace the Class II factory radio in your Cadillac vehicle with this Radio Replacement Interface with OnStar Retention by PAC. The OS2-GM32X allows you to install an upgraded aftermarket radio without losing important factory features such as OnStar, the factory-amplified sound system, and warning chimes. This radio replacement interface is plug-and-play for simple installation.
    See all Radio Replacement Modules

    Product Description

    Easily replace the Class II factory radio in your Cadillac vehicle with this Radio Replacement Interface with OnStar Retention by PAC. The OS2-GM32X allows you to install an upgraded aftermarket radio without losing important factory features such as OnStar, the factory-amplified sound system, and warning chimes. This radio replacement interface is plug-and-play for simple installation.
    See all Radio Replacement Modules
    See all Radio Replacement Modules
  8. PAC - Radio Replacement Interface with OnStar Retention for Select Cadillac Vehicles - Blue - Front_Zoom

    Product Description

    Easily replace the Class II factory radio in your Cadillac vehicle with this Radio Replacement Interface with OnStar Retention by PAC. The OS-2C-CTSX allows you to install an upgraded aftermarket radio without losing important factory features such as OnStar, the factory-amplified sound system, and warning chimes. This radio replacement interface is plug-and-play for simple installation.
    See all Radio Replacement Modules

    Product Description

    Easily replace the Class II factory radio in your Cadillac vehicle with this Radio Replacement Interface with OnStar Retention by PAC. The OS-2C-CTSX allows you to install an upgraded aftermarket radio without losing important factory features such as OnStar, the factory-amplified sound system, and warning chimes. This radio replacement interface is plug-and-play for simple installation.
    See all Radio Replacement Modules
    See all Radio Replacement Modules
  9. PAC - Radio Replacement Interface for Select Chevrolet Corvette Vehicles - Blue - Angle_Zoom

    Product Description

    Easily upgrade your factory radio while retaining your vehicle’s factory amplified audio system with this Radio Replacement Interface for Select Chevrolet Corvette Vehicles by PAC. The ROEM-VET1 allows you to replace your factory-installed BOSE radio with an upgraded aftermarket radio without losing the functions of the amplified sound system. This radio replacement interface is plug-and-play for simple installation.
    See all Radio Replacement Modules

    Product Description

    Easily upgrade your factory radio while retaining your vehicle’s factory amplified audio system with this Radio Replacement Interface for Select Chevrolet Corvette Vehicles by PAC. The ROEM-VET1 allows you to replace your factory-installed BOSE radio with an upgraded aftermarket radio without losing the functions of the amplified sound system. This radio replacement interface is plug-and-play for simple installation.
    See all Radio Replacement Modules
    See all Radio Replacement Modules
  10. PAC - Radio Replacement Interface for Select GM Vehicles - Blue - Front_Zoom

    Product Description

    Easily replace the factory radio in your GM vehicle with this all-in-one Radio Replacement Interface by PAC. The RP3-GM12 interface retains your factory-installed amplifier, provides navigation-based output signals and more to help simplify aftermarket radio installation while retaining your vehicle’s factory features. This radio replacement interface also provides a secondary output for adding an optional PAC steering wheel control retention interface.
    See all Radio Replacement Modules

    Product Description

    Easily replace the factory radio in your GM vehicle with this all-in-one Radio Replacement Interface by PAC. The RP3-GM12 interface retains your factory-installed amplifier, provides navigation-based output signals and more to help simplify aftermarket radio installation while retaining your vehicle’s factory features. This radio replacement interface also provides a secondary output for adding an optional PAC steering wheel control retention interface.
    See all Radio Replacement Modules
    See all Radio Replacement Modules
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