Online auction with car tyres

Today I would like to use this blog to ask you for help. I have noticed that more and more people is reading it and I believe that with your help I might achieve more. I understand that most of you don^t have the time to help me and to share your opinion with me but there is also a group of people that would find some time to share their knowledge with me. I hope so, at least. Let me give you the background of the situation at first. I have recently created an online auction where I am trying to sell the car tyres that I no longer use. The problem is that no one seems to be interested in it. It is hard for me to believe that there are no people out there willing to buy this product at the prices that I have established. I think that I have a problem with advertising it and I really have no idea how to make those online auctions with car tyres popular. If you can share your experience with me and tell me how to promote online auctions I would be really thankful. Obviously I would really like to hear opinion of people who are experts in marketing but even if you are not one of them and you have some experience with online auctions or car tyres, please leave a comment. It means a lot to me, thank you.