Optimus 120-1998 - Manual (Page 3)

Stereo Cassette (120-1998) Installation Faxback Doc. # 6931
BEFORE YOU BEGIN THE INSTALLATION
Before you install the stereo, carefully read all instructions and see if
you can answer these questions about the vehicle's electrical and sound
systems.
* Does my vehicle have a 12-volt negative ground system?
* Which of the stereo's wires is the power wire?
* Which terminal on my vehicle's fuse box is for accessories?
* How do I connect a wire to the fuse box?
* Which stereo wires are line-level outputs and which are speaker
outputs?
If you are unsure about any of the above questions or any part of the
installation process, we recommend you have a professional auto sound
system installer complete the installation.
Cautions:
* If installation requires cutting or modifying your vehicle, or if
obstructions are behind the mounting surface, we recommend you have a
professional installer complete the installation.
* Before you mount the stereo or install any speakers, temporarily
connect the speakers, power wires, and antenna to test the stereo.
Preparing the Mounting Area
Before you mount the stereo, make sure you have all the necessary
materials. Then confirm that the stereo fits your vehicle's stereo
mounting area. The mounting area must be at least 7 inches (17.8 cm)
deep.
Note: If the mounting area is too large, you might be able to mount the
stereo with an in-dash installation kit, available at your local Radio
Shack store. Follow the installation kit's instructions to mount the
stereo.
Routing Speaker Wire