Bentley Turbo RL

[Dulay]

Hi all,
1991 turbo RL. Couple of problems......
Central door lock. When I hit open all door mechanisms rise, but the left rear drivers passenger door goes up a bit but won't open. I have to hit the open button a second time and then it rises a little more and opens.
When I hit the lock button,the rear passenger side door mechanism will not go down. Ha e to open the door, push it down and then close it. What do I need to replace or fix?

The radio.... I have the cassette radio and a separate CD player. Time to replace and bring into the 21 century. What sat nav radio phone interfaces have most people replaced these with?

My alarm fob won't work. Big clumsy thing. What have others replaced these with?

I just replaced the motor module on the pax seat. Doing the same with the driver seat next week.

Thanks in advance

Dulay