Hey, im soon to upgrade to a new head unit and don't want to cut the factory wires..which is the correct plug I have to buy?

http://www.soundmaster.com.au/Mitsubishi-Wiring-Harness-(Early-Models)/AP7010.asp

or

http://www.soundmaster.com.au/Mitsubishi-Wiring-Harness-(Late-Models)/AP7011.asp


Thanks Chris