Mini abb basic questions

i bought a 4wd 1 robot combo kit for ps2 controller for project. but i have not enough knowledge about this subject. both the scorpion and the mini abb needs power but htere is only one connection cable for 7.2 power supply. shoud i need to add a connection to the power supply? thnx and can anybody send some connection diagram

Have you ckecked out the Electronics Installation & Testing Instructions?
You need to make a cable to hook them both up, like the one in the instructions:

The guide suggests some short sections of 20awg hookup wire.

thnx