I got carried away testing these codes and it says maximum number of subscriptions reached. Is there any way to remove some? (as I didn't really prioritise the ones I put in). I tried changing the VendID to 0 and rentering the code of one to remove but that just seems to disable it (so it doesn't show in the list), the same message still appears on trying to add a new sub.

Are these stored in the TMC or on the Nuvi? If a sub can't be removed, which do I need to replace to sort out this problem? (If on the TMC, if someone else uses the TMC will they be able to use the traffic codes I entered or are they tied to the Nuvi?)