I do have the same problem.
AV worked 100% fine with 5.0.0.517 (approx) (native os on telus as of may 2010)
start malfunctionning in 5.0.0.713
still doesnt work in 5.0.0.983
i own a VW Golf 2010. please don't blame vw for electrical problems... :P
I will say that when I switched to the 517 cod, bluetooth wouldn't work at all on my phone, when I switched back to 983 the bluetooth was reset completely, except that it still wouldn't enable the "audio source" service
Another thing - I had a category set up in my phone so my whole phone book wouldn't transfer over to the car. Now that setting on the phone doesn't work, it will allow me to select "Select Categories Only" yet won't let me add the selected category
I have a 895 file I'm going to try sometime today.
the 895 cod took and the phone works, haven't had a chance to try and sync with the car yet.
More info:
Categories was my fault, found this:
When you are selecting the options about what contacts you want to transfer, you select categories, then click the menu key and select 'categories'. You can then choose the category.
I did all this, refreshed the upload, and all the contacts from my phone address book that were assigned to the selected category were uploaded to the car :-)