I just bought a 95 GSR that has a mechanical-only hatch release... can I replace it with an electric switch that I can use with original key fob? The original key fobs that I have - have an Ďoptioní button in the middle that does nothing right now. (Iím hoping this can be programmed to be used to open an electric hatch release switch...) Iím sure this question has been posted many times on here, but I canít locate a link to one...
Just add an electric solenoid (they're pretty cheap) to the existing mechanism of the trunk release.
Don't expect the trunk hatch to lift when the solenoid is added, however. Because of the weight of our hatches, the solenoid will only un-latch the trunk. You're still going to have to physically lift the hatch.
As far as utilizing the "Option" button on our key fobs. I don't know of a way of programming this. Frankly, I'd go as far as saying that it's not possible.
These key fobs were manufactured to be utilized across a lot of Honda models during this time period, which used this specific button, for the sake of mass production, instead of having to create and design key fobs for every specific model.
Now if you ever decide to add an aftermarket alarm system, you could use one of the outputs to control your added electric trunk solenoid. However, like I stated above, your hatch won't physically lift.