Apparently there's a locking tab somewhere ehind the cupholder. And it looks like you will need a flat scredriver to unlock it. Here's Handa instructions on how to install the accessory ahtray: http://handa-accessories.com/odyssey/odyashtray.pdf
Or you could also remove the radio headunit. Once it's it out you should be able to see what's behind the cupholder. Good Luck!
-Nestor
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HOMER'S ODYSSEY
Or you could also remove the radio headunit. Once it's it out you should be able to see what's behind the cupholder. Good Luck!
-Nestor
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HOMER'S ODYSSEY