For BMW z4 E89（TAX FREE）

Everything works very reliably and quickly. There’s a slight issue with the audio because the BMW Bluetooth and the Bluetooth unit interfere with each other. But when you set the priority so that the phone connects to the BMW Bluetooth first, it works great. I had a problem installing it in a BMW G31—there’s really limited space, and there isn’t much room to put it—I had to remove a piece of white plastic from the bottom. That created some space where I could squeeze it in, but I lost the ability to close the cover on the phone and drink holder

ok

Very good thank you

Everything went smoothly with the installation process, and it took less time than expected. The documentation explained everything very well.

- Hardware installation: Went smoothly without issues.
- Software/Smartphone setup: Very straightforward and user-friendly.

The only suggestion I have is that the "How-To" guide for using the system could be a bit more detailed. I will reach out to support with a few specific questions.
- software/smartphone setup --> very simple
The only thing I would like to remark is that a How2 for using the system could be more detailed.
I will contact the support for my questions.

The roadtop unit turns the OEM BMW screen to android auto and it is flawless.