When I bought my NSX, it was missing the spare tire air pump. and I know from reading the NSX parts wanted messages that quite a few of the owners are also looking for the air pump. So here is my question: Has anyone bought and use a non-OEM air pump? If yes, could you please give the details regarding brand, price, ease of use, how it compares to the OEM pump, etc. THANK YOU VERY MUCH.