Instrument connections

[Ashtonr]

Hi I'm in the process of fitting an Acewell Speedo, Rev counter etc and have a couple of questions about warning lights. I have tried to take most of the tell tale lights straigt off the Standard sierra Instrument connector.

1. The brake warning light appears to be activated by pulling the connection to ground how do I get 12v for my tell tale the wiring diagrams in the haynes manual appear to show a transistor being used to invert the voltage is there a simpler method ?

2. My High beam indicator stays on after hbeam has been switched off and also sometimes comes on just with side lights, if i measure the output with a DVM it shows as ov would a resistor between this pin and GRND help ? any ideas on a size ?

3. Fuel Gauge I cannot seem to interpret how this works at all, it appears that the sender provides a resistance to grnd is the correct ? If so guess I will need to invert the voltage in a simular way to the brake warning lights

Any suggestions greatly appreciated

Rob