You don't need the stock head unit to run the Auto A/C, just the blue screen (IDD). If you remove your stock head unit you can still tap into those lines to get the signals from the factory harnesses, the head unit doesn't need to be installed to do it. Alternatively you can get those same signal lines from the OBD-II port, I just opted not to.This is an awesome write up! I would do this if i still had my stock head unit .
Snoopy, is there a way to have my blue screen still display the outside temp without the stock head unit?
An alternative module would be required since it's the head unit that translates the exterior temp sensor into CAN data for the display.
I've tried about 6 devices, none have streamed Bluetooth for me.According to the Hyundai tech site all gen Coupes for all years are compatible for streaming. At least for verizone and the S3.