Hi Al,
Yes, you will need to code the car using VCDS when the tail lights are fitted, otherwise the car will permanently display the bulb-out warning light (the LEDs draw less current than regular bulbs). See this thread.
The 77TSI doesn't have the MFD Plus, which is required to display audio info, and Bluetooth may be wrapped up with that - in which case, you may need to buy a 90TSI.At any rate, see this thread, and others in the VW Car Audio and Electronics forum for the info you need on the 9W7.
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