Hummers

Hi I've been having problems with my new 1999 S-Type whereas the Sat Nav won't pick up a GPS signal. I've managed to access the diagnostics application, gone to the GPS section but it shows that the unit is in Japanese Standard Time and the date is 1991. I guess I need to reboot the system but it asks for a system CD. Does anyone have one? If I can reset the date then I'm sure it will pick up signals. I guess the only other option I have would be to strip out the Sat Nav and stereo and install a more modern one but I really like the layout as it is. Does anyone have a suggestion? Could i strip out the old CD-based unit and replace it with a modern DVD unit and still utilise the head unit in the dash? Any help would be appreciated. Thanks

Hi All I'm having problems with the SatNav in my recently purchased 1999 V8, basically it's not receiving a GPS signal - I keep recalibrating it but within 5 miles it's put me in a field or occasionally, in the Solent again. Can anyone tell me where the GPS module/aerial is located please, just wondering if replacing the head unit will fix it? I'm also still using the original 1999 disc - can anyone help me with that too? Thanks in advance.

At long last I've finally taken the plunge and bought my dream car, a low-milage 1999 4.0 V8 S-Type in Silver. It's got a few issues but I'm gradually working my way throught them - just need to fix the sat-nav and we're there. I've always been averse to buying automatics but having driven this one, I can't believe I've not bought one before. Personally I'm 48 years old, married for 27 years and a Firefighter from Hampshire and now the envy of my watch,

I've just purchased a 1999 S-Type. I gather the early models came with a CD-based SatNav whereas from 2003 (I believe) Denso changed to a DVD-based system. So my question is, can I replace the head-unit for a newer one (DVD-based) or is it simply a matter of burning a modern DVD disc to CD (as long as the data fits)? My unit still contains the original 1999 disc. On another related topic, the SatNav keeps losing it's way and I have to recalibrate it. Would this be caused by the GPS receiver? I'm not getting an icon saying "No GPS". Thanks in advance.