My sealed shiva is moving along slowly but steadily, and I have run into a slight problem. I am flush-mounting the driver, and it appears that t-nuts will not fit on the edge of the driver cutout without going over. (also, I made the mistake of puttin the box together before putting in the t-nuts, so I was screwed anyways). Is there an alternative to t-nuts that I can use in my current situation, or am I just going to have to screw into bare MDF? thanks!