Can base model be upgraded to transmitting keyfob easily?

I have a model 0 94 Prius. I of course purchased the car the moment I saw it without doing any kind of research on different models. It didn't help that this was the only Prius they had on the lot. So I stuck myself with a base model. Not a huge deal, but I'd really like have the ability to lock/unlock the car with the little handle buttons as well as to get in the car and just press the power button.

What I need to know is, does the base model already have everything it needs to perform the same way a model 3 Prius would? Is the wiring already run to the door handles and simply need replacement of the handles that have the buttons? Is the ECU already capable of recognizing the upgraded transmitters?

It is pretty easy to find the handles at junk yards nowadays thanks to people that suck at driving. So if everything is already there, it'd be a piece of cake to upgrade. If the ECU needs to be swapped out as well, that isn't too hard, but which ECU unit needs to be swapped?

Thanks all!

 

Thank you for the info.. Sad news for me though. Oh well, I do not know, maybe I will sell the Prius, but I'm not really sure I'd buy another one though.