CarPlay Hardware design in Car

franky134 wrote:

Thanks, I have the apple account already, so I have to go to product plans then click New Product Plan to create a carplay project to apple at first ? when apple approve my request, maybe I will get those information for CarPlay hardware design, right ?

Here is what the Apple MFi program provides access to: https://mfi.apple.com/en/how-it-works.html

Given what you seem to want to do: "Join the MFi Program and get the technical specifications, hardware components, certification tools, and badge artwork needed to develop and manufacture electronic accessories that connect to Apple products using licensed technologies. Companies and organizations are eligible to apply."

We are all other end users here and do not have access to this type of information. You need to contact Apple.

As mentioned above, the folks that work for Apple may or may not be reading here.

Start here for info on enrolling in the MFi program and for CarPlay integration: https://mfi.apple.com/

If you have questions about MFi or CarPlay integration, best ask the folks that work for Apple, and you can share your general plans with them as part of that discussion.