Nissan Primera P12 - Radio in SECURE mode

My Nissan Primera P12 has had problems for many years with the red car showing up and car can't start. Have not solve it yet but i can see some suggest the barrel sensor (will check that soon) but now i have another issue. My Radio sometime (most times now) says SECURE on green background then i can't control/use it. Sometime SECURE does not show up but the radio behaves weird like i can't turn the volume up/down. I have fitted myself a PArrot MKi9200 many years ago that worked fine but otherwise it's the original radio that installed. I have just replaced the car battery lately because i think i had some start problems with it. Does anyone know if this radio problem can/is related to the one with the NATS/barrel sensor or that the battery has been bad sometime ? 

/donnib

Is the parrot unit still fitted and working? have you checked its fitting over time?

I am unsure if this is a AV problem or a NATS issue. if the former a replacement unit will need coding to the car. If the latter it could be faulty antennae, NATS unit or some wiring/connection between them. Does the red car symbol still occur?

 

You don't mention the age of the car, the earth fix is very simple to do and is generally used on 04 aqnd before models, not usually for this issue but give it a go.

http://www.npoc.co.uk/forum/p12-rear-light-removal-now-with-simple-earth-fix_topic16533.html

The audio unit uses the aerial as an earth you might want to have a look at that or just earthing the unit to see if anything changes

Not sure which dials you mean ?

No it's not possible to disconnect the parrot without opening the dashboard up to the audio unit up also it's hard to test if it's the parrot since the problem is not always occurring. I noticed that many times the problem occur in the morning leading some thoughts about humidity but i don't know.