I believe this is 4 conductor wire. So, you need to connect 2 conductors together for one side of the amp channel (positive for example) and the other 2 for the other side of the amp channel(negative). If you have purchase connectors(spades or bananas) simply put 2 in one connector, and 2 in the other.
***NOTE*** you must be consitent in the conductors joined together at both ends! Failing to do so can result in many nasty things (shorting your amp channel, out of phase speakers, etc) Take 2 colours (white and grey) for one side, and the other 2 (Red and black) for the other Make sure each end of the cable (amp and speaker) has the same combinations. The actual colours will not matter, unless specified by the manufacturer. BUT IT IS EXTREMELY IMPORTANT to make sure you are consistent!!