2013 Toyota Corolla Apple CarPlay

Which carplay should I buy for my 2013 Toyota corolla
Whichever one you like most. There are a lot of choices so go to some local car stereo store and look around at different models. Some will have NAV and some won't, some will be double DIN units and some will be single DIN. Some will have pre-outs for adding amps while others won't. You get the idea. Nobody can answer your question but you.