July 2014
I have an old car that came with electric windows but has old fashioned side view mirrors which are almost useless. I would like to upgrade to more modern mirrors that are aimed by control of 12V electric motors. On the driver's side, that is no problem as you simply use a four-way switch scavenged off the vehicle that you got the mirrors from, using the 12V available to run the electric windows.
However, to use that same switch to control the right hand mirror, I would have to drill a hole in the edge of both doors and both front pillars, and snake a wire through from the left side to the right side. It occurred to me that the use of radio waves from the left hand door could be used to control four relays in the right hand door and obtain the required action.
Something like Ron Newton used in his “Super Detector” article in the October 2013 issue of NV. Any suggestions would be appreciated.
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There is a Chinese company that sells lots of off the wall stuff. Here is the link to a 4 channel remote control relay box. The unit will cost $17.50 with free shipment. (1 week to 1 month). I have bought a similar item and it worked fine. www.dhgate.com/product/4-channel-rf-wireless-remote-control-switch/179280704.html#s1-2-7|328444939 Here is a simplified wiring diagram.
