How would I do this?

I have a device that uses 1 memory card at a time. (small flash mem) I want to use 6 memory cards at once.(not have to remove the card and put another in) Hardwire tie into the on board memory card port. With a push button selector. Push the button and it would dissconnect 1 memory card and select the next memory card in series. Every push of the button would cycle to the next card. I am assuming the data wires for the memory cards could pass through to the onboard port. Just the power wire would need to be selected. Also would like to put a led indicator to show which mem card is selected.

If this makes sense to you and you can help me figure out how to work this I would really appreciate it.

I drew this up this up so you can get the general idea of what I am trying to do.
**broken link removed**