Have looked everywhere for new maps for the iCN 530 without result, when I got my iCN 530 it put me back over 300 pound.
I feel let down by Navman and will think twice before I get another one from them.
Their support is as much use as a chocolate teapot, their site gives you the runaround leaving you annoyed and without support.
I think for that money you'd buy support as well.
You can not find map updates for discontinued Navman units.
As someone wrote, Navman makes disposable GPS units. Navman has a limited period for mapping support but they don't tell it to customers before they sell the device.