The kit you got is for the older Symphony and Concert head unit with mini-ISO connectors. The RNS-E and all new II+ generation radios need Quadlock connectors. But as Ted said, it easy to make a new adapter cable that fits teh RNS-E.
Doesnt the Red one side plug to the OEM harness and the second one to the RNS-E harness the ? when I got my ICElink plus came with one cable both sides looks the same as yours and one went to the OEM harness and the second goes to the RNS-E adapter harness.