Like T4B said, relocating the grey wire (antennae) to the drivers A-pillar can increase your range by a bit. Also, like Scott said, if you point the remote at your temple and press the button you can more than double your range. I have no idea why this works, but it totally does (I'm probably frying my brain cells in the process).
The "Option" button actually activates an Isuzu garage door opener. I think you can still get them, but they connect to your garage door opener and receive the signal from the Option button and then tells your garage door opener to raise or lower the door. Pretty cool.
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