Here's what I found on the first part listed:
WILL NOT WORK ON CARS EQUIPPED WITH USB INPUT OR iPHONE 5/5S USING LIGHTNING CABLE PLUG! - (USB input is commonly found on Infiniti models from mid 2010-on, while others still used this dedicated aux input, please check to be 100% certain that your car is equipped for this dedicated input and NOT the USB version found on newer models).
...problem with certain apple products not charging unless I use some special adapter...
This is because there's a special chip in the Apple connector that many 3rd party (Chinese knock-offs) don't have, so they do not work right.