I've recently put the back lights off a facelift B5 A4 on my '95 A4. They just plugged straight in so no re-wiring was needed.

Only thing is, now the airbag light stays on for about a minute or so after turning on the ignition before it goes off. (Also the back lights for the fuel & temp gauges on the dash have gone)

On the bulb holders off my old lights there were connectors for two earth wires coming from the car, on the new one's there isn't so I've just left the earth wires disconnected. Could this be the problem?

Any advice would be appreciated.

Cheers