996.2 OEM nav unit retrofit - cutting the bezel or not?

[lockeed]

I own a 996.2 Targa w/ bose sound. I purchased an OEM Nav head unit from a 996 compatible with bose.

Anyone did this retrofit in the past? The plastic frame is split into two section (previously for the climate module and radio). The nav unit is obviously much larger and needs a larger opening. Did you guys had to cut the plastic frame to make room for the nav head unit? Would like your feedback before I start cutting!

Thanks