To prevent injur y or fire,take the following precautions:
Insert the unit until it is firmly locked to the main unit, otherwise it may
fall out of place when jolted
When extending the ignition, memory back up or ground cable, use diameter of 0.75mm(AWG18) or
more automotive grade cable to avoid wire deterioration or damage
to the wire coating.
To prevent short circuit, never put or leave any metallic object into the unit.
If you smell or see smoke, turn off the power immediately and consult your dealer. 
Be careful not to drop or shock the unit strongly, it may break or crack because it contain glass parts.
To prevent damage to the machine, take the following precautions:
Be sure the unit is connected to a 12V DC power with a Negative Ground
The unit is only designed for use with 4 speakers. Do not combine output for use with 2 speakers. Do not ground negative speaker leads to the chassis ground
Do not open the top cover and do not install the unit in
place where it is exposed to direct sunlight (including the faceplate),in order to avoid high heat or humidity, water splash over it or dust. 
Do not touch the terminals of the units.
If you have difficulty in installing this unit in your vehicle. Please contact your dealer. 
If the unit seems not work in properly press the reset buttonto reset the memor y of the unit.
Attaching panel
Attach the front panel by fixing the left side of it into this unit as1 showing.Then push the right side of panel towards into connecting plug as 2 showing.
Attaching panel |
2