Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to update your honda navigation system maps [title] Check annually. [step] Honda navigation system updates are released annually, and currently come on a dvd format. You will need to purchase the latest disc version from navteq.

Ending1: Once your new honda navigation dvd arrives in the post, you can proceed to the installation process below. [title] Turn on the ignition in your honda car, and keep it running. Ending2: The cost to upgrade your unit is $99.99 per month and there are programs installed online to help you with this change. [title] Use the cd/dvd remote access feature. Ending3: [title] Ask your roadside service representative if you are eligible for automatic updates. [step] Even if you are eligible for automatic updates, you will need to check with the vin. Ending4: There are two options to check every year; auto-updates and integrated technologies. [substeps] Auto-updates are more expensive, but will pay off in the long term.

Answer format: ending1/ending2/ending3/ending4