Honda Accessory Plate for Hidden Garage Door Opener

Last crawled date: 4 years, 3 months ago

I wanted to make an integrated garage door opener switch for my 2005 Honda Element. This hidden switch replaced a blank accessory plate. I now have controls for my two separate garage doors.
I remixed morris1972's design
Details of remix
1) No more need for supports by adding 0.4mm (2 layers) bridge for the "spring" tab.
2) Reduced thickness of the face (original design was proud of my dash).
3) Adjusted switch hole size to match my switch.
Things I purchased:
3-pole Momentary On Switch $0.40 and matching 3pc wire kit $0.38https://www.aliexpress.com/item/4000035585011.html?spm=a2g0s.9042311.0.0.444e4c4dDhBlBD
4-wire with Male/Femal plug - 5pc, 4 wire, $1.49https://www.aliexpress.com/item/32966181600.html?spm=a2g0s.9042311.0.0.444e4c4dDhBlBD
Note the switch is momentary on, so it returns to center after pressing the button.
How I put this together
1) Open the garage door opener and remove the board.
2) With multimeter figure out which two pins become "shorted" when each button is pressed.
3) Solder the four pins to the 4-wire (the one's with plug) to the 3 wires for the switch. Note that each switch will actually share one wire for the center (common) pin on the switch). Also note there are 3 buttons on my opener, I only am using two.
4) Mount the 3 wires onto the switch.
5) Create hole/slot in garage door opener with soldering iron to allow wires to exit casing.
5) Push Switch into 3D printed plate, and mount into car (with garage opener unplugged)
6) Mount newly modified garage door opener under the dash with velcro