RC Control + Autonomous

Can anyone tell me hot to make a 4WD Rover both RC Control and Autonomous. Or to say it a little differently: to make an autonomous rover with a manual override with RC Contol.
Thanks

Make it autonomous first. Have the code also read the PS2. When a particular switch or button is pushed, switch over to using info from the joystick instead of the direction vector created by the autonomous code.

Alan KM6VV

Not really difficult to do.
I’m using a Futaba FF7 35Mhz as a transmitter and a 6 channel receiver. The board just reads informations sent out by the channels of the receiver and does the proper things. I’m using one of the switch channel to operate the auto/manu commutation. So the bot is in manual mode by default and switches to autonomous when the switch goes on.