so the middle vent is only $18.... im going to masscre it
. there is plenty of room behind the dash. 3 steps to this as i see it.
1. fit the radio, take interference measurements with the middle air duct.
2. cut middle air duct to allow radio placement while sealing the main middle of the airduct and creating 2 exit ducts further back by the beginning of the center neck area. so instead of have 3 outlets 1 to left, 1 right and 1 massive center, it will have 4 outlets 1 right, 1 left and 2 smaller centers essentially right and left of the radio.
3. fabricating the front fascia where the old air vents and radio used to be. main 7" double din centered, 2 air ducts (possibly always opened) 1 to each side of the radio.
(this will be the meat and potatoe so to speak of the whole build) probably the most time consuming.
edit*(what was done in this orange car was just a cutout on the dashboard and somesort of vent put in place. that would be ideal but i have no clue where to find a vent like that)
part #3