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Thanks CL770 and bluecoupe! Am going to buy a set and get them red buttons off them to replace the one that is all but gone (the one has only the ring of red left). I'll use the one then save the second one for when it is needed (probably 'file' it away and forget where I put it LOL). Been wanting to do this for a while but never was sure the buttons were the same design. Great to know that!

After a few minutes of searching various search engines and websites, I bought Ebay item#
351279748787. Two 3 button (lock/unlock + panic) FOB cases for $14.53 (13.45 + 1.08 tax), with free shipping. This will take care of the rotted out one, plus I'll have a spare. I also might swap out the button pad, if it is also a direct fit...
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