Looking to do a budget upgrade on my 9a avionics. Going with G3x Gdu 370 (non touch). Concerned I won?t have panel space in my center stack for everything thus looking at a remote transponder...specifically the gtx 23es which is of the vintage and does interface with the 370. I really can?t find much info and just wondering about functionality/buttonolgy through the 370 vs the easy of squawk code entry of a panel mount. Your thoughts and experience are greatly appreciated