yaris sedan remote trunk relase question pls help soon

[fantabulousbaby]

hi all, i'm supposed to order my yaris today. the thing is, i want to add a viper alarm/keyless entry/remote start aftermarket. I want the trunk release on the viper (auxiliary button) to work... in the yaris brochure it says that "remote trunk release" is standard.. but keyless entry is $230 more. I thought the remote trunk release button was on the same thing as the keyless entry thing, so how could this be? i test drove the sedan (i'm ordering the "S") and there was only the latch trunk release (next to the gas release thing). Toyota can't mean that latch is 'remote' right? can some of u look in ur cars? (circuit city dude says there's no need to pay extra for factory keyless entry system if I'm gonna install a viper anyway, he can do the trunk release on the auxiliary button long as the trunk release is 'electronic' aka non-latch). So what does the car have??