Clarion OHM156 User Manual

OHM106/156

15

• A good chassis ground connection is critical to minimize resistance and avoid noise

problems. Use the shortest wire possible and securely connect it to the car chassis
and the source unit ground.

• When routing RCA cables, keep them away from the power cables and output

speaker wires, engine, exhaust system, etc. Heat may damage wires.

• If the fuse should blow, make sure all connections are correct and no wires are

damaged before replacing the fuse. Always use fuses that are the same amperage
value as the original fuse. When replacing a fuse, never let the battery side touch
any metal part or any other wire.

The OHM106/156 replaces the car’s dome light. This section provides basic tips and
techniques to aid the installation. These are not vehicle specific, but should be used as
guidelines for performing the installation.

1. Identify the polarity of the dome light circuit and set the switch on the bottom of the

overhead monitor housing.

2. Test fit the overhead monitor system on the ceiling of the vehicle. Verify that it will

not interfere with the save operation of the vehicle.

3. Carefully mark the location with masking tape.

4. Lower the vehicle’s headliner down to see if a roof support beam is available to

screw the mounting bracket to.

If a support beam is not available, use a 3/4 inch piece of plywood cut to the
appropriate size. Attach the plywood to the roof of the vehicle using silicone. Allow
for adequate drying time.

5. Double-check the length of the mounting screws (not included) to make sure they

will hold the unit securely.

OHM.pmd

2006-02-28, 13:00

15