Lighting Issues...

Evening Punters,

As predicted by my Wife, my simple DIY attempts have resulted in a roadblock.

In summary:

With my rear courtesy light failing to work, I removed the cover and the bulb fell out. "Result! This will be an easy fix..." (italics for the internal monologue) With much confidence, I reinsterted the light (which looked LED-ish and NOT halogen) and SPARK! CRACKLE! (dropped the bulb rather hastily). As you can probably guess, since this attempt resulted is my understanding that these bulbs have polarity, my front courtesy lights and stereo now refuse to work (although the power aerial still does).

Given my limited electrical understanding, what is the most likely outcome here:

1. Blown fuse in fusebox (it is not the stereo, as I have checked the 10A fuse in there and it looks fine e.g. no breaks)

2. Blown bulbs in ALL couretsy lights.

3. Give up, take car to auto electrician and heed Wife's advice at ALL times.

Also, am I to expect central locking as standard on a 95 TT? If so, that is another electrical gremlin to chase...