Stacking Seeed 2.8 TFT Shield with Seeed Bluetooth shield

Just so I am clear…

I set up the software to use A4 and A5 by changing

#define RxD 6
#define TxD 7

to

#define RxD 18
#define TxD 19

Then put a jumper wire in A4 and A5 of the socket of the bluetooth shield and connect them to D0 and D1 of the bluetooth shield???
Do I remove the jumpers that are on the D0 through D7 rx/tx selectors?
and where does A4 go to D0 or D1 and A5 D0 or D1?