Nav?Radio wont shut off?

What do you mean by "shut off"? The unit normally only goes to sleep when the car is turned off (if you ever power it off completely, you see how long it really takes to boot when the car is next turned on). Is yours continuing to show its display even when the car is off?

Which fuse did you pull?

Power arrives at the unit both at the gray wire (L40 pin 11) supplied in the car's ACC mode, telling the unit when to be awake, and the sky-blue wire (L40 pin 1) that is always powered, keeping the unit alive while it sleeps.

The always-on power comes through the RAD NO. 1 fuse, and the ACC-wakeup power comes through the ECU-ACC fuse.

There are two (cigarette-lighter shaped) "power outlets" in the car. Do you have something you can plug in to those to confirm they have power in ACC mode and turn off when the car is off? They are both governed by the car's ACC mode signal, but by different relays. One of them is the same relay serving the ECU-ACC fuse and therefore your nav unit.

 

mmmm almost sounds like something is fused/melted together in the radio allowing
part of the radio to stay on........
Maybe pull the radio and look at the connectors and see if something is not correct.
Next would be taking the radio apart and inspecting it...

 

It could be a short too. You might double check the fuse box and see if there's any debris in there that might be able to short some contacts together. Also if you recently had any unrelated maintenance done, you should look around those areas to see if they may have pinched a wiring harness when they put things back together.

 

It will be easy to pick a way forward as soon as the OP has reported the behavior at the car's two power outlets as discussed in #2 and #3.

 

Ok, so the next two things I would check would be voltage at L40 pin 1 (sky blue) and L40 pin 11 (gray) at the back of the unit, with a multimeter, to try to confirm that the sky-blue one is always powered, and the gray one is powered only in ACC (or ON or READY). That should be checked, of course, with the fuse you've been removing not removed. (If you like, you can check again with the fuse removed; then we'll know which of those you've been pulling the fuse for.)

If you confirm the correct behavior of power arriving on those two wires, then I'd suspect whatever is zorched is just inside the unit itself. If there is power arriving on the gray power wire when there shouldn't be, then that might call for investigating the wiring.

 

Hi there, I am having the same problem today. If you got any solution for this please let me know. It started after I accidentally left a window open and it rained.. secondly my car is also not locking

 

Probably the best way you can use this old thread for help is not by asking what somebody else's root cause turned out to be, but by following the same testing steps. That'll help lead you to whatever the root cause is in your car.