Good advice about using a remote location box and a completely new amazon account with only your cam name... BUT...
Any address you use for that account can still be shown to the member in various ways, so do not ever use your home address, ever. Also, if you use a PO box, the legal name of the person who owns it is PUBLIC INFORMATION and if a person is determined enough, can get your real name by requesting it via some crazy means to the USPS (since it's a government run agency.)
**also, if you use a friend or relative's address, that is just one bit more of information your members can use to track down your identity. Don't do that.
So instead of a PO box, use a UPS box (at a UPS Store) and tell them you're using an online alias for Internet security. Since they are not a government agency the information is treated more privately (though you can NEVER be too sure there won't be human error if a determined customer tried to get your info.)
The long and short of it is really that if you're concerned at all about your location/info being discovered, it's better to not have a wishlist. Physical items are nice and can make you feel spoiled, but we're really in this for a paycheck, and members should be sending adoration in the form of tokens/credits/etc on our cam site, not sending us panties that we can write off on our taxes.