I honestly don't remember doing anything in particular to get the clock. I only remember setting it for 24:00 format time.
My car is a 2008 and it could be that the clock was already in the firmware of the nav unit, and in that way not necessarily dependent on the 3.0 disc. It is possible that the firmware update to bring this feature to 2007 and prior models only came on the 4.0 disc.
Incidentally, I bought my 4.1 disc from an ebay seller in Texas named magaly_littlesteps. This transaction has not gone smoothly at all. I've been on ebay for over ten years and made well over 100 transactions in that time. This one is a candidate for the worst. Four days after paying and then agreeing in good faith to pay even more than originally requested for shipping - plus several e-mail exchanges - I still don't have a tracking number that the USPS website recognizes.
I remain hopeful that things will work out, but in the meantime would like to caution other members to steer clear of this seller until I can confirm a positive conclusion to my purchase.
Ah yes! I did not catch that yours is a 2008 model. Being in the software/firmware business I should have spotted that. Thank you for the response and especially for the heads up on your purchase problems. I sincerely hope that it all works out in your favor.
I will not be upgrading to Version 4.1 as I only need the clock on trips and at night. I cannot read the analog clock on my 2006 at night and only if it is not sunny during the day.
I do not leave the disc in unless I am going to use the NAV system as there is a lot of disc head activity going on even when not in use causing unnecessary wear.
If I have the system on, stop, turn off the engine, remove the key, and open the door there is still disc activity. Also, leaving it in during hot weather while parked out side in the sun can cause warping of the disc.