If you want it to be within arms reach, no outwardly visible, and dont want to go through the steps listed above then you can consider trying to find a small lockbox that would fit behind the silver dash trim to the left of the headunit.
That piece pops off easily and there are a few cubbies behind it. You might be able to rig something up in there. Just be sure to check your locale state laws regarding hidden compartments in a vehicle. I believe it is illegal in some states.
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