Like this....Mike @ Whiteside did my install and cut the wholes for me. 2" round wholes and some 2" desk gromets from Lowes glued in works perfect.
Some people freak on cutting holes in their trunk. It didn't bother me. It's not big enough of a whole to cause structural issues. If you're super concerned about it you could keep the pieces that get cut out and have them welded back in some day.
2SS | M6 | VR w/White Stripes | 1 3/4" KOOKS - 3" Magnaflow | LPE 3.91 gears | ADM tuned | Halltech w/ADM Scoop | Spohn/BMR Trailing Arm/Toe Rod | BC Coilovers| Pedders FE4 ZL1 swaybars | Cradle/Diff/Radius Rod bushings | VMax TB | Morimoto Projectors | MGW shifter | Red Calipers