Thank you for choosing the iSimple IS77 as your audio input solution. The IS77 is designed to
provide the connecting link between your audio source and your FM radio. Using the supplied
accessories, you can connect virtually any audio source into any FM equipped radio. This
interface has a universal input that can be congured to accept an audio signal from any source
with an RCA connection or a standard 3.5mm “Headphone” output.
The IS77 will route the audio from your device through your factory or aftermarket radio not
equipped with a built in auxiliary input. If your audio source is an iPod featuring a docking
connector, this interface will also charge the iPod’s battery, when connected.
2. IS77 Components
• One Radio Input Interface
• One 3.5 mm to 3.5 mm Audio Cable (4ft.)
• One 3.5mm to RCA adapter
• One Power Cable with a On/Off Switch
• One iPod Audio/Video Cable Outputs (5ft.)
• One “factory look” 3.5mm Dash/Panel Mount Audio Input Cable (6ft.)
3. Installation Options (Choose A or B)
A. Connecting an iPod
iPod Specic installation instructions
1) Connect the two audio connectors from the iPod cable to the audio inputs on the PURI.
2) Connect the two-pin power connector on the iPod cable to the connector labeled
“Connect to iPod” in the PURI wiring harness.
3) The Yellow connector from the iPod cable is intended for video playback from iPods that
support this function. Route this Video connection to any video display that is not in view
of the driver while operating the automobile.
4) Route the iPod connector to your chosen iPod location in your automobile. Common
locations are the glove box, center console or in a mounted iPod cradle. You will need to
access the iPod in order to change music selections, etc..
1
B. Connecting a Source with a Headphone or Line Output
AntennaOut*
AntennaIn*
PURI
ConnectstoiPod
Connectsto
On/OffSwitch
MENU
iPodAudioCable
(5ft.)
Fuse
Fuse
3.5 mm to RCA
Adapter
Antenna Out*
Antenna In *
PURI
Connects to
On/Off Switch
Fuse
3.5 mm to 3.5 mm
Audio Cable (4 ft.)
“factory look” 3.5 mm
Dash/Panel Mount
Audio Input Cable (6 ft.)
3/8” hole
MP3
(not included)
iPod
(not included)
Connect To
SWITCH
Connect To
iPod
Connect To
SWITCH
iPod Conection
Not USE
audio source
(not included)
OR
3.5 mm to 3.5 mm Audio Cable (4 ft.)
“factory look” 3.5 mm Dash Panel Mount Audio input (6 ft.)
3/8”
PURI
Universal Radio Input
Stereo Audio to FM Radio
Audio Input
°
L
°
R
Power 12V DC
°
Ground
°
Antenna Input
°
Antenna Output
°
Tuning Frequency (
MHz
FM)
87.988.3
Radio Tuning Frequency
Use to select best operating
frequency for your area
Audio Input
Left & Right
Antenna Out
to FM radio*
Antenna Input
from vehicle antenna*
Ground Connection
Connect to a clean ground point
Factory or Upg raded Radio *
On/Off Switch
3/4” mounting hole
Connects to Power Source
ACC 12VDC
Power when key-on
2A Fuse
TOP VIEW
Installing the 3.5 Dash Panel Mount Audio Input
1) Choose mounting position of dash mount
audio input and carefully drill 3/8” mounting
hole. Install connector.
4. Radio Input Interface (PURI)
Installation
* Antenna Adapter May be Required
2
2) Connect your audio device to the newly
installed audio input via the supplied 3.5 mm
to 3.5 mm connection cable.
PURI Gain Adjustment
PURI
Universal Radio Input
Stereo Audio to FM Radio
Audio Input
°
L
°
R
Power 12V DC
°
Ground
°
Antenna Input
°
Antenna Output
°
Tuning Frequency (
MHz
FM)
87.988.3
AntennaOut
toFMradio*
AntennaInput
fromvehicleantenna*
GroundConnection
Connecttoacleangroundpoint
FactoryorUpgradedRadio*
On/OffSwitch
3/4”mountinghole
ConnectstoPowerSourceACC12VDC
Powerwhenkey-on
2AFuse
TOP VIEW
Gain Adjustment
Use to match volume of PURI
to volume of FM radio stations
BACK VIEW
HL
LEVEL
+
1)The PURI 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 to
the PURI. 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
PURI 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 PURI Red wire to 12V+ (Ignition)
b. Connect the PURI Black wire to Ground
c. Connect the vehicle’s antenna into the PURI antenna input*
d. Connect the PURI antenna output into the radio*
*A vehicle specic antenna adaptor may be required to make these connections
The rocker switch supplied with the PURI will turn the device on and off. When the switch
is in the on position, the PURI will interrupt the incoming antenna signal to deliver the
cleanest signal possible from your device through your FM radio. To regain standard FM
reception, move the switch to the Off position.
4) Once the PURI is installed correctly, be sure to properly set the audio level. When set
correctly, the audio level of the PURI will match the volume of typical FM radio stations.
3
5. Troubleshooting
Symptom CauseRemedy
No Audio from the
Aux source
iPod does not
charge
Noise / Static1) Improper selection of IS77
Low audio1) the volume is down on the audio
1) IS77 is turned offMove rocker switch to ON position
2) Connection cables are disconnected
3) The radio is not on the correct
station
1) The power connection on the
IS77 is disconnected
2) The fuse may be blown in the
power plug on the iPod specic
connection cable
frequency
2) local radio station is interfering
with the Auxiliary input device
source
The IS77 Gain is set too lowAdjust the gain setting on the back side
Check all interconnects for proper connection
Verify that the FM radio is tuned to the
frequency on the side of the interface.
Connect power cable according to Con-
guration 1 in Section 3
If fuse is blown, replace with equivalent
fuse
Tune to the frequency specied on the
side of the IS77 interface.
Change the frequency setting on the
side of the IS77 to the other position,
and use the new frequency to access
the audio source
Turn up the volume on the source to ensure best sound quality through the IS77
of the IS77
For Best Performance Have It
Professionally Installed.
iPod is a trademark of Apple Inc., registered in the U.S. and other countries.
iPhone is a trademark of Apple Inc.
4
6. Warranty Information
One Year Limited Warranty
The quality controls used in the manufacture of this product will ensure your satisfaction.
This warranty applies only to the original purchaser of this product from an authorized
Peripheral Electronics dealer. This warranty covers any supplied or manufactured parts of
this product that, upon inspection by Peripheral Electronics authorized personnel, is found to
have failed in normal use due to defects in material or workmanship. This warranty does not
apply to installation expenses. Attempting to service or modify this unit, operating this unit
under conditions other than the recommended voltage will render this
WARRANTY VOID.
Unless otherwise prescribed by law, Peripheral Electronics shall not be liable for any personal injury, property damage and or any incidental or consequential damages of any kind
(including water damage) resulting from malfunctions, defects, misuse, improper installation
or alteration of this product. All parts of this Peripheral Electronics product are guaranteed
for a period of 1 year as follows:
Within the rst 12 months from date of purchase, subject to the conditions above, Peripheral
Electronics will repair or replace the product at their discretion, if it is defective in material
or workmanship providing it is returned to an Authorized Peripheral Electronics’ dealer, with
PROOF OF PURCHASE from an authorized Peripheral Electronics dealer.
Warning:
This equipment may be reset by unintentional electrostatic discharge during operation.
Exposure to direct sunlight or extreme heat may cause damage or malfunction.
FCC Class B Radio Frequency Interference Statement
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of FCC rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
1. Re-orientate or relocate the receiving antenna.
2. Increase the separation between the equipment and receiver.
3. Connect the equipment into an outlet on a circuit different from that of which the receiver
is connected.
4. Consult the dealer or an experienced radio / television technical for help.
Notice : The changes or modications not expressly approved by the party responsible compliance could void the user authority to operate the equipment.