I’m looking at some Apple CarPlay units that supposedly replace the radio in a Prius for my son’s birthday. I’ve been doing some reading to find a good drop-in CarPlay unit that’s already fitted for a 2007 Prius. There seem to be quite a few options out there, but I haven’t found one with consistently good reviews. Several reviews say the unit doesn’t come with a resistor that’s needed to keep the top dash display working. I’m not looking to invest in an expensive stereo. Just something that will allow him to play music from his iPhone, use CarPlay, and make hands-free calls while still using the factory speakers in the Prius. I see quite a few in the $150 range, but most of them still have very few reviews. Does anyone here have good experience with one of those CarPlay units that drops nicely into the space where the radio and small storage bin are on the dash?