I'm back with my dual 3.5" speaker brackets

Hey dustermaniac, Best I can remember you just have to be a contortionist and patient.......no need to remove the dash LOL

Does it bolt/screw up from underneath? Is it just a matter of removing the stock speaker and threading the new plate up under the dash to install?Do the heater controls pose any issues with this? Sorry about all the questions, I would need to remove some aftermarket gauges to install this.