Rear View Camera Installation - Part 3

Update November 2018. I replaced the monitor with a duplicate this month.

This is Part 3 of a 3-part post about installing a rear view camera and monitor.

This part provides some information about the wiring for powering up the monitor via selector switch. I did only slight editing and so this is a bit longer than is necessary.

The photo shows the original GPS, the new monitor and the toggle switches. The right-most switch powers the 7-inch color monitor and wireless receiver. When the switch is in the "UP" position these are powered "ON" and the green LED is illuminated.

Test before Installing
Let me emphasize that it is extremely important to test everything before installing. This includes the camera, transmitter/receiver, monitor and any switch panel. Failure to do so can extend the time required by a substantial amount. It is also possible to do very expensive damage.

I estimate my total time for this project was about 8 hours. This includes the time spent reviewing different camera systems by different suppliers, the final selection process and the ordering and arrangement for filming as well as the actual installation time. Time was reduced by preparation of sketches before any wiring, thorough research of the existing camera system, and a careful check of the existing chassis wiring. Time was increased by the video filming. However, I did not include the time to put together this blog.

GPS and New Rear-View Monitor

Components
To provide some idea of what is required, here is a basic parts list for a single toggle switch installation:

1. Two-Position maintained contact toggle switch (I used a three position switch).
2. Green LED rated 12 VDC.
3. 1/2 watt resistor to limit the current through the LED.  680 Ohms recommended by LED manufacturer. 
4. Terminal Strip
5. Miscellaneous #18AWG wire in various colors (red, white, black, yellow)
6. Solder and soldering iron
7. Wire tags, wire ties, crimp-on terminals
8. Hand tools, drill, volt-ohmmeter, electrical tape, 12 volt battery for final system testing before installation. 

Alternative Approach
One can also use a simple cigarette-lighter plug which is available for about $5.00. This eliminates the switch panel, reduces the cost and substantially reduces the assembly time.

The Video