If i remove this block music start play for 1-2min only on ignition on but if i plug him back music stop and need to start engine on to music play... ? So any ideas maybe my tv block broken and cant controll screen with button what you think guys ?

Photo of block

So i changes nav system for e53 to e38 (e38 nav system working fine) so e53 block is working fine in e38 all controlls working on screen and buttons but e38 nav system block is not working in e53... so its not nav system block so who can be more ? : :blink:

Ok i will try get new or used for bmw original used parts or find who give only test it engine not important for nav compiuter ? only year and module of bmw ?

So what i need do now to fix it  ?

So i need new nav.modul in boot ? or all new screen ?  :'(

Hello can give links good scanner to buy for my 2000year 4.4i x5 and e38 1999year 740iL ?

I pull out nav. Systemem fuses ( 7; 72; 73) but in boot i found only 72 and 73 fuses so i pull out them for all night in morring i put them back and screen still frozen but then turn ignition on music not playing and no sound but if i start engine on then music start playing but i can still control ...

From all block or only from nav. ? Becaus i see 3blocks nav, cd changer, and more one black on bottom

All buttons not working screen is frozen plz help it fixView My Video