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hey does anyone here know if CTO bay is a reliable source to buy from... has any1 had any problems with them...

The problem is not ctobay it's the product. You have about 20% chances to get a defective system if you get a Hualingan and to return it to China is a not an easy process if that's an option.

I just got my unit from CTOBAY...
It took almost a month to get it but its finally here.
Hope to install it maybe this weekend. I have 03 X5 with OEM Navigation, no DSP
Unit looks really solid, I am surprised that the outside quality is so nice.
Screen looks HUGE :)
I also bought rear view camera.
Anyone knows if the camera just plug and play or do I need to do some extra wiring/relays/???

Hopefully everything works. The camera should be plug and play although I don't know which one you got. You need a fakra cable but I guess you know that.

sorry, no idea about fakra cable. Can you give more info?
Googled it but saw different cables/results

You can test it in the trunk but to install it you need to bring the audio back to the front, under the carpet/seats. Since you have NAV your install is not quite plug and play.
You can do it yourself by extending the harness they gave you but you have to twist the wires the proper way. The supplier should have told you or asked you. Hualingan offers that as an option but the reseller has to help out.
PM me if you need one, I might still have one. You also need the radio antenna extension cable.

Thanks for responding.
Actually I retrofitted my OEM navigation (my car had only CD player before...) so this will be a 2nd time for me taking out the drivers seat, lift the carpet, etc...:D
I saw they included long wire loom so looks like I have all the wiring I need.
Cant wait to start this project, wish me luck and I will post questions (hopefully not many ;)

Hey fmugur,
you probably know this system the best. Can you please look at the pictures and tell me if I am good to go with installation or if I am missing some wiring.
I was told that the unit I received is the latest upgrade, hopefully its true.
If you have any ideas, advices for the installation let me know, I really appreciate it.
Wish me luck guys. This will be my 2nd NAVI retrofit in this car.:D
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http://i340.photobucket.com/albums/o...I/DSC_0148.jpg

http://i340.photobucket.com/albums/o...I/DSC_0149.jpg

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Received my Hualingan today and connected it in the back of my trunk on the cable that normaly connects into the BM54. The Navigation MK3 cdplayer is disconnected and also no cd changer is arround. Switched it on and got sound, but the dvd wouldn't play, got some message about blah, blah, master ... but again still sound! Removed the Alpine 16:9 boardcomputer and buildin the Hualingan. Still everything works. Switched off the car and after finishing my lunch came back and ... NO SOUND???? Also the amplifier setting were set back to zero and every change I made no effect. As soon as I turn my key in the ignition off/on these settings dissappeared and got back to zero. Everything seems to work except for that master message when trying to play a dvd and radio channel gives good signal all without sound ...

- did a hard reset with the button on front -> no effect
- flashed the device with the latest firmware -> no effect
- no light effects in the button -> ???
- amplifier settings are lost after reboot and switched back to zero
- when pressing reset button I get some noise from the speakers, so they are still alive ... after that nothing ...

Also what do these cables do? (see picture marked as red arrows) also noticed that you can connect these together, but is this needed in an BMW X5 2002 model?

Whatever is wrong I don't know, should I send it back to de dealer? Maybe amp in Hualingan blew up? Anyways I don't have any dsp or whatever so please if someone know how to help me. Many thanks!!!

Car: BMW X5 nov 2002 model 3.0d