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1.Choose a mounting location on the dash board or instrument panel that 
will allow room behind to run radio cables to the power source. Consider 
how you will use the AUX IN, LINE OUT and USB connectors and route the 
appropriate extension cables to an accessible area. 
 
2.Cut a hole Diameter: 80mm/3.15 inch in the dash board using the 
provided template. At least 3.5-inch depth is needed to mount the radio.   

IMPORTANT! Do not mount this unit where it can be submerged in 
water. 

 
3.Attach the included screw posts (A) to the back of the radio. 
 
4.Place the radio in front of the dashboard opening so the wiring can be 
brought through the opening. 
 
5.After completing the wiring connections (refer page 

3

), turn on the radio to 

confirm operation (vehicle accessory switch must be on). If the radio does 
not operate, recheck all wiring until the problem is corrected. Once proper 
operation is achieved, turn the accessory switch off and proceed with final 
mounting of the radio. Refer to the wiring diagram on page 

3

NOTE: Before final installation, test the wiring connections to make 
sure the unit is properly connected, and the system works. 

 
6.Insert the radio into the mounting hole. 
 
7.Place the 'U' bracket (B) over the screw posts and secure the radio to the 
dash using the included hex nuts (C). 
 

 

Summary of Contents for GSMR20

Page 1: ...Bluetooth Audio Streaming Bluetooth 3 0 A2DP Audio Streaming USB AUX Input IPX5 Rating THIS PACKAGE CONTAINS Marine Media Player with Bluetooth x 1 Sun Dust Cover x 1 USB Extension Cable 1m x 1 U Moun...

Page 2: ...stallation 4 Button Description 6 Basic Operation 7 Radio Operation 8 USB MP3 WMA Operation 8 Aux In Operation 9 Bluetooth Operation 9 Troubleshooting 10 Technical Specifications 11 Warranty Informati...

Page 3: ...able ground wire is not present in the vehicle wiring harnes s Connect the black ground wire to the vehicle chassis Fuse When replacing the fuse make sure new fuse is the correct type and amperage Usi...

Page 4: ...re to the negative battery terminal or other good power ground Please read entire manual before installation Before You Start Disconnect negative battery terminal Consult a qualified technician for in...

Page 5: ...4 Place the radio in front of the dashboard opening so the wiring can be brought through the opening 5 After completing the wiring connections refer page 3 turn on the radio to confirm operation vehic...

Page 6: ...6 B U T T O N D E S C R I P T I O N...

Page 7: ...ust the desired setting DX Local is used on AM FM mode for Local Distance control LOC selects an internal attenuator which will help to reduce the interfere nce and distortion often associated with ve...

Page 8: ...et stations Each band can store up to 6 preset stations Press button to access the Preset stations Please note the new stations will replace any stations previously stored on the Preset Stations If th...

Page 9: ...ayer or smartphone devices through the AUX IN located at the back of the unit Press SRC button to change the mode to AUX IN Please note In this mode all controls and functions must be controlled from...

Page 10: ...e fuse Unit has power but no sound CAUSE Speaker wire not connected ACTION Check connections at speakers CAUSE One or more speaker wires touching each other or touching chassis ground ACTION Insulate...

Page 11: ...Ground Load impedance 4 8 Ohms channel Maximum output power 45W x 4 CH Operate temperature 10 50 FM Tuner Tuning range 87 9MHz 107 9MHz USA 87 5MHz 108MHZ EUR AM Tuner Tuning range 530KHz 1710 KHz US...

Page 12: ...umber altered defaced or removed Poly Planar warranty does not cover damage incurred in transit accident abuse misuse negligence fire flood lightning or unauthorized service This warranty assumes no r...

Page 13: ...13 NOTES...

Page 14: ...14...

Page 15: ...15...

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