Jensen JWM1A, Owner'S Manual

JWM1A 

4 

INSTALLATION 

It’s a good idea to read all of the instructions before beginning the installation. We recommend 

having your Jensen JWM1A installed by a reputable RV dealership 

Tools and Supplies 

You will need these tools and supplies to install your JWM1A: 



Phillips screwdriver 



Wire cutters and strippers 



Tools to remove existing radio (screwdriver, socket wrench set or other tools) 



Electrical tape 



Crimping tool 



Volt meter/test light 



Crimp connections 



16 gauge wire for power connections 



16 – 18 gauge speaker wire 

Disconnecting the Battery 

To prevent a short circuit, be sure to turn off the ignition and remove the negative (-) battery cable 

prior to installation. 

NOTE: If the JWM1A 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. 

Selecting the Mounting Location 

Select a mounting location, taking care to avoid the following: 



Places exposed to heat-radiating appliances such as electric heaters 



Adjacent to other equipment that radiates heat 



Poorly-ventilated or dusty places 



Moist or humid locations 

Mounting the Radio 



Use the mounting hole diagram to measure and cut a mounting hole 



Route power, speakers, AV, and antenna cables through the hole and connect 



Check and ensure correct operation 



Mount the unit using four M3x20mm (3/32 x 0.75”) screws 



Attach Trim ring 

NOTE: Before cutting the mounting hole, make sure the area behind the mounting location 
is clear of wires, fuel and vacuum or brake lines.