Drupal Views based on filtering taxonomies based on available content -

this seems should relatively basic, can't seem wrap brain around it. have client in need of advanced filtering thousands of different content items. each content item filed using different taxonomy types. filter through system, should eliminate content not correspond selected taxonomy.

so far, good.

the issue filters should update based on taxonomy of selected content.

in particular case, there's select box location, hunting/fishing, , species. if select illinois > fishing > freshwater, last filter (species) should show tags species list correspond selected filters.

the system works fabulously displays every species of fish, not ones selected filter.

any guidance tremendously appreciated.

i recommend views_hacks module (views selective exposed filters submodule) ajax enabled , autosubmit views.