my navi is suddenly not working. The digi clock shows when the car is turned on and running however the navigation will not turn on, non of the buttons do anything? ideas? fixes? This is out of the blue.

 

I'd start with cleaning the DVD, then the DVD player as these are simple items. After that I would borrow / buy another GPS disc to see if another disk works, as many people have had issues that were solved by using another disk (as their old one got scratched, worn, etc...). If after that, I would either wipe the GPS (through a dealer wipe disc) or buy a used Navigation unit on eBay specifically from an XK8/XKR (even though the XJ8/XJR's have the same part number- they different and incompatible firmware loaded).

 

thanks bill, i neglected to mention that when the stereo installers installed the sirius tuner right after that is when the problem started. I am thinking something may have been disconnected accidentally. i am going to have then check friday.

 

I would say it is likely related to that install. There are many threads on adding additional items to the Alpine Ai-net system. There are only certain areas, wires, and signal strengths that work. Also what may work in a model one year on one car, other people sometimes cannot duplicate to a model in another year even though all components seems the same, or very similar.

 

the radio has to have power, as well as properly communicate with the amp and navi over its A-net before the functions next to the screen can be used. The clock can come on as long as the navi is working.

 

see my updated post requesting new DVD source

 

Actually, it sounds pretty much exactly as what the Navi in my Jag was like when the radio was locked. Says "press enter", but pressing enter does nothing at all. It was just constantly stuck at the leaper logo.

I finally managed to recover my radio code today, cost me $20. Navi started working as soon as I had unlocked the radio.

 

so how did you recover your radio code and how do you enter the code if the radio is locked and non of the buttons work? sounds like a similar problem to mine. All that shows is the digi clock and no buttons seem to do anything. I had the car torn apart and everything is connected and working as it should. I put a new disc in and it reads it then moves into the clock screen? When I remove the disc the display recognizes and says to enter a dvd disc. SO wiring ok, not a disc problem, not a hardware problem. I am perplexed.

 

Cannot say how... But somehow your original radio system could be "locked", before putting the new system in. I don't know what device is responsible for managing the code/locking...