I am trying to get my D801 to work fully with my new car with GM's Intellilink system which seems to be white listing BT MAC addresses from what I can tell and I am trying to spoof my address so that it appears as a Galaxy S3 or S4. I think I have a MAC address from an older Samsung device, so if someone would like to provide the BT Address from their S3, S4, Note2 or Note3 that would be awesome. However that in and of itself is a moot point as I have tried to edit both the /data/misc/btaddr and /data/misc/bluedroid/bt_config.xml files and neither seem to hold/apply when I reboot. I have system mounted r/w and change the permissions to 755 before editing. I am running CM11 M6. Can anyone either suggest how I can spoof my BT address or any other ideas on how to get my phone to work with GM's system. I can get it to connect for phone only; no media, text or other.