Universal dock adapter for iPod classic

I am having problems obtaining a MA125G/B Universal Dock Adapter for my 160Gm iPod Classic. Now that all my music library is on the iPod, I am changing the "docks" from my car to my SUV to my home stereo system to a chargeable portable SONY docking station. I have only the one dock adapter #9 which came with the iPod. I live in Canada, and have had my Apple store try to locate a few additional adapters for me, but without success. I see that I can order one on line from Amazon.com, but when I go to purchase it, I am told that it can only be shipped within the US. Is there any retailer out there in Canada from whom I could purchase two or three of these universal adapters?😕