Yes thats the cable you need, the se's and sport models came with a built in amp that lives under the glovebox and passenger side kick trim.
This has to be unpluged to connect the new amp-by=pass cable to, which is then ran up the inside of the dash to the new head unit.
So the link you gave is correct.
Also wehn fitting the new head unit find the aerial cable, it has a black wire attched to it, this black wire is the 12v+ feed to power the signal booster which you must feed 12v+ to give you any decent radio reception!!!!
Pm me if you need any more help fitting your new head unit.
Martin.