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Installation
About the Installation
The installation of the OHMD74 overhead monitor system requires experience in both
mechanical and electrical procedures. If you do not posses the necessary experience or
tools to attempt this installation, contact a local Clarion dealer for assistance. Improper
installation can result damage to the monitor and/or the vehicle.
This manual provides basic installation tips and techniques to aid in the installation of the
OHMD74 overhead monitor system. The installation instructions are not vehicle specific,
it’s a guideline on how to perform the installation.
Prior to Beginning Installation
• Verify that all of the functions of the vehicle work properly (i.e.: power windows, power
door locks, air conditioning, lights, etc.)
• Verify the monitor will not interfere with the operation of the sunroof, if applicable.
• Test fit the location of the overhead monitor system to ensure it will not interfere with the
safe operation of the vehicle.
• Determine the location of the AV source(s).
• This unit is exclusively for vehicles with a negative ground, 12V power supply.
• Do not open the case, there are no serviceable parts inside. If you drop anything into
the unit during installation, consult with your dealer or an authorized Clarion service
center.
WARNING!
Be sure to disconnect the battery (-) negative terminal before starting.
This is to prevent short circuits during the installation.
