It isn't a good head unit. The build quality is poor and the sound reproduction is sub par. I do not know how you obtained it, but it would be best to sell it while it is still working.
I dont want to go into how i obtained it but i have it and it did not cost me nothing and its in my friends car right now and seems to be working fine, and unless it will drasticly change the sound of my music i am fine with it. Because it looks nice and its a flip out eventually down the road i will get something new but unless it explodes and blows up my subs and amp i should be ok with it.