Yes! In the same way that you can list your Sophio FBS inventory in your eBay store you can also list qualifying Sophio FBS items in your Amazon store. The first step is to contact Amazon and get approved to sell auto parts. Sophio has a business development contact at Amazon by the name of Zach Zilch and he will be happy to help you get started. Amazon requires that auto part sellers be professional sellers. This means you must already be in the business of selling parts.
There are no additional fee's to sell on Amazon that come from Sophio and you do not need any other third party for help. You will have to signup for an Amazon seller account and pay Amazon directly their fee's.