I'm installing a 1 din headunit and 1 din eq into a double din opening in a Chevy truck. The stock radio has the brackets for mounting built in so I can't use those. What I am looking for are some suggestions on mounting the units securely. I've looked at aftermarket solutions but so far I haven't found any that will work with my setup, most are just one, 1 din unit into a double din opening. Maybe I'm looking in the wrong places?