My T08 arrived from bmwpowerandaudio.co.uk yesterday so I had a fun time fitting it, here's a review with some photos. This will be a long post.
First impressions on unboxing - unit is quite heavy and feels well built, the edges are very smooth with no chips etc. There is a LOT of wires.. there's 2 x aux, 2 front speaker out, 2 rear speaker out, sub out, 2 video out, 2 camera in ports, 2 USB cables and I'm sure there's more.
Install - you need to drop the glove box out (5 minute job) if you want to run the USB cables and aux into the glove box like I did as I'm going to run a 1tb hard drive with films, also makes charging phones easy. You will also need to run a permanent live from the fuse box to a yellow wire on the unit or it forgets the time when switched off.
You will need to run the mic wire down past the steering wheel and fit it by the clocks- again this only took a couple of minutes.
Wiring loom plugs straight in, aerial plugs straight in, canbus box and reverse siren plug straight in and all work perfectly.
Fitting the heater controls is a bitch as it's very tight but wiggle it a lot and some force and it goes in.
Powering up - screen displays a bmw logo on startup which I thought was cool. Plays every kind of video file and music format that I have so that's great. Screen is very high quality and displays colours perfectly. Works with HD movies perfectly. Sound quality is perfect, better than oem. Car play app works perfect. Maps app that's on there is very good - displays speed limits and warnings for speed cameras! Steering wheel controls all work perfect. Radio works perfect.
Overall - great unit and worth the money all day!
Think that's everything, but any questions feel free to ask and I'll do my best to help.