Hi and welcome to the forum,
Someone will hopefully correct me if I'm wrong, but I don't think the leads are supplied when you purchase just the controller.
They are usually supplied when you purchase a complete wheel kit, but a replacement set is available separately in the accessories section of the GM website for $29:

is it possible to program for ride in rear with the controller ?
If you mean can they run in a reverse direction, the BAC cruise controller did have this function, but it would not work with minimotors fitted with the internal freewheel device.
Special Features:
• Cruise Speed Control
• Motor hall sensor failure redundency (Automatically switch to sensorless control)
• Anti-theft alarm and wheel-locking by detection of vibration
• Other failures redundency (Work with failed throttle and power breaker)
• You can force it to work with higher voltages (e.g 24V controller can drive 36V and 48V motors)
• Report failure components by beeps
• Motor phase self detection and calibration
• Support Forward and Reverse Control
• Excessive Current Protection
• Low Voltage Protection
• High Reliability
So according to which motor you have, it may or may not work.
Alan