Where can I get a cable that would link a Palm 3x to a Garmin GPS? I have plenty of Garmin to 9 pin dsub cables if there is a solution using one of these to a 9 pin to Palm cable. I also have dsub M-M or F-F connectors as well as dsub null modem connectors, just in case!

I have tried all of the usual suspects: -

ebay
GPSBitz
Serialleads

but no-one seems to sell them