I've replaced the OR operators ( || ) in that line, with the AND operators ( && ):
if( empty($_GET['wpv-relationship-filter-make']) && empty($_GET['wpv-relationship-filter-model']) && empty($_GET['wpv-relationship-filter']) ) {
Earlier, the results would be withheld, until all three relationship field had some options selected. Now, they'll only be withheld, until any one of the relationship field has some value selected.
Thank you for the reply. That looks good, but it's still not letting me see all of the tuners when no vehicle is selected. I still have to choose a make to get results. What I would like to see is 2 fold:
I want to be able to navigate to hidden link and click the submit button to get all of the results.
I also would like to be able to load the page and select only a category (and no make) and get results.
Is this possible?
That should be fairly simpler and I've changed that same line in the code to:
if( (!isset($_GET['wpv_filter_submit'])) || (empty($_GET['wpv_filter_submit'])) ) {
This line now only checks whether the submit button of the search form has been clicked or not.
And now it works perfect again. Thank you for your help!