Toyota "comfort access" mod/kit?

Ahlright, so im wondering, does it exist any third party systems for the prius that locks and opens the doors whenever u leave or approuch it such as BMW`s Comfort access does? I already have the keyless access and keyless go so its not really necessary. But it wouldve been usefull considering the flood lights i have on my avast side mirror turn signals turns on whenever i open the car, but for that i have to physically take up my keyfob and open it via the keyfob. So im wondering if anyone knows about a system that can do so the car opens or locks whenever u approuch it and leaves it? ive already checked on viper`s smart systems, their systems dont do that... All the toyota`s with keyless access turns on the interior lights whenever u r close to it, so obviously it knows if the key is in close proximity. Would it may be possible to mod it to lock and unlock the doors whenever it turns on and off the interior lights?