Thanks ed78 for the reply.
Yes, It's the HDD problem here.
I asked a few workshop saying that the HDD is empty.
I did not do anything as I only will use the player for Aircond Function & Music (HDD)
At first I start my car, it came out to be this, and all functions cannot be use including the rear camera.
Then I off the engine & start it back, it appear to be normal.
The third or forth time I start, it appear to be as in the picture until now.
Yet, I've not insert any CD/MD to the player for weeks before this happen.