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INSTALLATION
It's a good idea to read all of the instructions before beginning the installation.
We recommend having your Jensen JWM90A installed by a reputable RV
dealership.
NOTE: If the JWM90A is to be installed in a vehicle equipped with an on-
board drive or navigation computer, do not disconnect the battery cable. If
the cable is disconnected, the computer memory may be lost. Under these
conditions, use extra caution during installation to avoid causing a short
circuit.
NOTE: Before cutting the mounting hole, make sure the area behind the
mounting location is clear of wires, fuel and vacuum or brake lines.
You will need these tools and supplies to install your JWM90A:
Select a mounting location, taking care to avoid the following:
To prevent a short circuit, be sure to turn off the ignition and remove the negative
(-) battery cable prior to installation.
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Phillips screwdriver
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Wire cutters and strippers
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Tools to remove existing radio (screwdriver, socket wrench set or other tools)
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Electrical tape
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Crimping tool
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Volt meter/test light
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Crimp connections
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16 gauge wire for power connections
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16
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18 gauge speaker wire
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Four M3x20mm (3/32 x 0.75") screws
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Places exposed to heat-radiating appliances such as electric heaters
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Adjacent to other equipment that radiates heat
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Poorly-ventilated or dusty places
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Moist or humid locations
Tools and Supplies
Disconnecting the Battery
Selecting the Mounting Location
Mounting the Radio
5
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Use the mounting hole diagram to measure and cut a mounting hole
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Route power, speakers, AV, and antenna cables through the hole and connect
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Check and ensure correct operation
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Mount the unit using four M3x20mm (3/32 x 0.75") screws
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Attach Trim ring
JWM9
0A
