Default Miui V5

I have just started using MIUI V5 on my phone and am very happy with it except I have two problems that may push me away from this great ROM.

1. Bluetooth- I have Ford Sync Bluetooth system in my car and the phone connects fine and Ford Sync downloads my contacts list from the phone so all good there but Ford Sync has the ability to read out incoming Text messages which it could access on the Stock Rom. Anyone have any ideas to as why MIUI is not letting Ford Sync access my text messages?

2. Google Play Store - This works great but keeps asking me to connect to WiFi for every app I download even when I am connected to WiFi. This is annoying and would like to know how to switch it off.

I am new to all this so any help is much appreciated.