Attaching a view to a content type that takes the content type's taxonomy terms as arguments
You can pass to the template, a variable which contains the second view value

function mymodule_entity_view($entity, $type, $view_mode, $langcode) {

  list($id, $rev, $bundle) = entity_extract_ids($type, $entity);
  switch ($bundle){
    case 'customtype':
      if( $view_mode == 'teaser' ){
        $entity-&gt;test['test'] = array(
          '#markup' =&gt; views_embed_view( 'view_2', 'default', $entity-&gt;field_custom['und'][0]['value'] ),
        );
      }
    break;
  }
}


Then, in your theme, a node--customtype.tpl.php, you can render the variable:

print render($test);