Map for poster, not for ads.
ClassiPress in the detail page of ads showing on the map in reference to the announcement itself.
I would, however, show the place referred to the poster.
I thought of two solutions:
1) the poster when you register to the site is required to enter the data of its business address, state, country ... etc.
2) without changing the custom fields of the poster, make sure that the poster, every time you place an ad finds the address fields, state, country, etc. already filled in so that there should not type them. In this way the position of the map is always the same for each ad.
How can I achieve this?