iSimple TranzIt BLU ISFM23 - Introduction; ISFM23 Components; Installation Options; Connecting to any FM equipped radio

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1. Introduction
Thank you for choosing the iSimple ISFM23 as your audio input solution. The ISFM23 (TranzIt
BLU) is designed to provide the connecting link between your Android device, iPod, iPhone or
iPad, and your vehicle. This interface provides a Bluetooth connection point for your Android
device, iPod, iPhone or iPad, and delivers streaming audio directly into your radio.
2. ISFM23 Components
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3. Installation Options (Choose A or B)
The ISFM23 interrupts the incoming antenna signal when in use, to deliver the cleanest
audio possible from your device. To regain standard FM operation without interruption,
simply pause the Android device, iPod, iPhone or iPad, and approximately 8 seconds later
the full FM band will be accessible. There is also a power on/off/auto option in the TranzIt
BLU app. If manual power on/off control of the ISFM23 is desired, disconnect the “loop plug”,
and plug the “optional toggle switch” into the power harness, in its place. This will allow the
user to turn the ISFM23 on or off at any time.
A. Connecting to any FM equipped radio
1) Red Wire. Connect to switched accessory power (not constant)
2) Black Wire. Connect to ground.
3) Antenna input. Connect antenna lead from the vehicle.
4) Antenna output. Connect antenna lead into back of radio.
Note: Antenna adaptors may be needed for select vehicles!
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B. Connecting to a radio equipped with an RCA auxiliary audio input
1) Red Wire. Connect to switched accessory power (not constant)
2) Black Wire. Connect to ground.
3) RCA connections. Use these connectors when the radio is equipped with an
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into the radio’s aux input.
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switched accessory
ground
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Antenna Out*
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Loop plug
Optional toggle switch
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to auxiliary audio
input on back of radio
switched accessory
ground
Antenna In*
Antenna Out*
ISFM23
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ccess
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Loop plug
Optional toggle switch
Smartphone or
Bluetooth device
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