Audiovox FMDIRB

Wireless FM modulator to convert to a wired FM modulator

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FM Modulator:

The Audiovox FMDIRB FM Switching Box converts the SIRPNP3 and XR9 units' internal wireless FM transmitter into a wired FM modulator. For use in hard-wired vehicle kit installation where the best possible sound quality with fewest dropouts is desired. This accessory connects to Audiovox vehicle kits SIRCK3 and XC9 only.

Product Features:

  • FM Modulator Relay Box
  • For use with select overhead models
  • Wireless FM modulator to convert to a wired FM modulator
  • Connects audio output with POD with FM modulator to car radio
  • This accessory connects to Audiovox vehicle kits SIRCK3 and XC9 only
  • May require factory antenna adapter available separately
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Product History:

Audiovox FMDIRB thumbnail
(newest, current model)
(previous model, replaced by Audiovox FMDIRB)

FM Modulator / Transmitter Specifications

FM Modulator Type
This describes the kind of FM modulator or transmitter.

FM Modulators typically wire directly to the radio and provide an input source to the stereo. The input is activated when the stereo tunes into a specified frequency. These usually require some intermediate installation.

FM Transmitters broadcast a signal that the radio is able to pickup via the antenna. Typically, these are more popular due to the easy installation.

Number of Frequency Channels
This is the total number of frequency channels that the item is able to tune into. This feature is common among FM modulators and transmitters.
Input Connection Type
This is the type of input that the unit accepts for its audio or video (if compatible).
Power Source
The power source is the method in which the unit receives power. Some units will be powered by batteries, while others will need to be plugged in to an AC or DC power source.
Made for iPod
This means that the item is designed for specific use with an iPod.

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Audiovox FMDIRB