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5h4dy |
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So to give some background, I was sick of accidentally popping the boot and tripping the panic alarm just by bending over with my keys in my pocket, so I decided to add a switch so I can disable the key fob easily. This thread should show you how I did it.
*Note - I used a cheap aftermarket key fob, as I didn't want to destroy a genuine one if it went wrong. This means I know it fits in the aftermarket ones, but with the difference in battery holders between the two, I can't guarantee success with a genuine one. Here is the difference between the internals: Genuine: Attachment: Aftermarket: Attachment: Tools needed: Soldering iron, wire cutters / strippers, drill / dremel, small hobby files (optional), X-acto knife (optional), something to pry open the key fob. Parts: Key fob that you don't mind damaging, new battery holder, switch, some wires. Attachment: Firstly I opened up the fob, removed the battery, and desoldered the battery holder from the circuit board: Attachment: Then I took the back part of the case, worked out where the battery holder would fit best: Attachment: Then marked and drilled a hole for the switch: Attachment: The hole can then be shaped with a dremel stone, small file, or even a sharp knife. I used a combination of all three, but whatever floats your goat. After I soldered some wires to the switch: Attachment: I then test-fitted the switch to make sure it would work and had enough room to slide on and off: Attachment: Once I was happy with that, I glued it in place with some epoxy resin and soldered the wires to the battery holder: Attachment: Once that was in place, I made up some more resin and affixed that too. I then trimmed the wires and soldered them to the board where the original battery holder was located: Attachment: Then it was simply a case of fitting the battery into the holder, and reassembling the key fob. If you did everything correctly then Robert should in theory be your Mother's Brother. *Note: I did have to grind down part of the new battery holder as the metal tab for the positive terminal was sticking up a bit far and would come in contact with the negative on the board, shorting it out. Easy fix though with a grinding stone on the dremel. |
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5h4dy |
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Mad2 |
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well done!
![]() only one part you forgot ........ sorry at the worst case you will get some dirt/dust/moisture in the opening ![]() |
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5h4dy |
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Mad2 wrote: well done! ![]() only one part you forgot ........ sorry at the worst case you will get some dirt/dust/moisture in the opening ![]() It can't go past the switch - I sealed it with resin on the inside, that's how I glued the switch in place. Yeah some dust could get into the switch, oh well ![]() ![]() |
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Mad2 |
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