$43,505 - $4005 = $39,500, so where did the extra $89 come from? Also, when I skim the Edmunds forum for this month, I only see $500 dealer cash.
I think what @mllcb42 meant is… is the dealer cutting you a check for $5000, or is that $5000 being applied to the selling price of the GLA? Given the numbers you’ve listed, it’s clearly not the latter.
However, your selling price makes no sense, so I assume you might have the terms or numbers mixed up?