Module Installation; Connecting To Radio / Gain Adjustment - iSimple IS7705 Installation & Operation Manual

4. Module Installation

Connecting to radio / Gain adjustment

1) The TranzIt LINK is designed to install inline with the radio antenna connection usually
located on the back of the radio in the dash. In some cases this connection may be at a
remote radio tuner location. Consult vehicle manufacturer's information in these cases.
2) Some antenna connections require the use of an antenna adapter in order to connect
the TranzIt LINK. These adapters are available from most car audio installation retailers.
3) Select the FM frequency where you will access your new audio device. On the side of
TranzIt LINK where the label indicates "Tuning Frequency" there is a two position switch.
Note the position of the switch before installing the interface.
If you have a local radio station that occupies either of these frequencies (87.9 or 88.3)
please move the switch to the position that does NOT match the local station.
The position of this switch determines the frequency where you will access your new audio
input. We recommend choosing one option, and setting one of the radio's preset buttons
to represent that station. This easily accesses your auxiliary audio input by pressing the
preset button.
Using a multimeter, identify 12V+ and ground wires behind the radio.
a. Connect the TranzIt LINK red wire to 12V+ (accessory)
b. Connect the TranzIt LINK black wire to ground
c. Connect the vehicle's antenna into the TranzIt LINK antenna input*
d. Connect the TranzIt LINK antenna output into the radio*
*A vehicle specific antenna adaptor may be required to make these connections
The rocker switch supplied with the TranzIt LINK will turn the device on and off. When the
switch is in the on position, the TranzIt LINK will interrupt the incoming antenna signal to
deliver the cleanest signal possible from your device through your FM radio. To regain
standard AM/FM reception, move the switch to the Off position.
equency
st operating
Note: Regardless of switch position, the TranzIt LINK will provide power to your device for
or your area
charging.
TOP VIEW
4) Once the TranzIt LINK is installed correctly, be sure to properly set the audio level.
When set correctly, the audio level of the TranzIt LINK will match the volume of typical
FM radio stations.
Radio Tuning Frequency
Use to select best operating
Audio Input
Use to match volume of IS7705
to volume of FM radio stations
Antenna Out
to FM radio*
Antenna Input
from vehicle antenna*
Ground Connection
Connect to a clean ground point
frequency for your area
TOP VIEW
2A Fuse
BACK VIEW
LEVEL
+
L H
Gain Adjustment
Factory or Upgraded Radio*
Antenna Out
On/Off Switch
to FM radio*
9/16" mounting hole
Antenna Input
Connects to Power Source
from vehicle antenna*
ACC 12VDC
Power when key-on
Ground Connection
Connect to a clean ground point
2A Fuse
BACK VIEW
LEVEL
+
L H
TranzIt LINK
Factory or Upgraded Radio*
On/Off Switch
9/16" mounting hole
Connects to Power Source
ACC 12VDC
Power when key-on
3