Head unit installation
Before installing your new 
CD Receiver, please become familiar with all the information contained in this manual.
Choose a mounting location where the unit will not distract or otherwise interfere with the pilot’s ability to control the boat.
Use only the installation parts and hardware provided with the unit to ensure proper installation. Using other parts can cause malfunction and
possible damage to your 
CD receiver.
Do not install this unit at an angle in excess of 30º from horizontal, as it may affect performance.
Although this unit has been designed for outdoor use, you can extend its life if you install it in a location which is not subject to extreme temperatures, from such sources as heaters or exhaust lines. Also, if you see dirt, dust or debris on a disc or in the CD slot, remove it with a clean cloth to avoid pushing it into the player mechanism.
To remove dirt from the faceplate, use a clean cloth lightly moistened with filtered water. If the unit is splashed with water, wipe it off with such a clean damp cloth before the water has dried to avoid an accumulation of salts on the face of the unit.
If properly installed, this unit will meet the IPX5 Waterproof standard. Please note that this does NOT mean the unit is submersible, but will resist being sprayed and splashed as might occur in a normal boat cabin.
To ensure that the installation meets the IPX5 Waterproof Standard, please follow these steps carefully.
1.Remove the transport screws from the top of the enclosure before beginning the installation.
Fig 1 Remove transport screws
2.Place the two pieces of plastic film provided over the two screw holes to prevent water penetration.
Figure 2 Apply plastic film to seal screw holes
MR1620W • MR1620S User’s Manual - page 2
