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.
- 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