okay one more, after much badgering around, i have modified the plugs from a mk3 gti fusebox to allow it to plug straight in, i am using connectors between the mk3 fusebox and the mk4 loom so it can be removed at anytime. connections from fusebox G1 2-outside air temp sensor-brown/white. 3-fuel pump relay earth trigger-yellow /blue----T6 brown connector pin 2-purple/white. 4-ecu switched live-black---T6-brown connector pin 1 15amp-black or black/purple(and vss pin 1). 6-fusebox-earth to engine block-t14a pin 9. 8-live from fuel pump-red/white---T14a pin 6 10amp-yellow/black. 10-live from ecu relay-black/yellow---T6 brown connector pin 5 10amp-blue/yellow 11-vehicle speed sensor to pin 2-white/blue. 12-tacho to clocks signal-green/black---T10 orange connector pin 2-green/red G2 1-oil temp sensor-green/black. 2-outside air temp-white/red. 3-coolant temp gauge-yellow/red---T14a connector pin 4-purple 9-constant live 20amp to ecu-black(need to fit a pin to g2 plug) ---T6 brown connector pin 4-red/green 10-high oil pressure from switch-yellow. 11-low oil pressure from switch-blue/black. F 1-starter motor exciter-red/black. 3-alternator ignition trigger-blue. 4-vehicle speed sensor pin 3 earth. 6-reverse switch pin 2-black/red. 7-reverse switch pin 1-black. (single connector) W 1-vehicle speed sensor junction-blue/white---T10 orange pin 6-blue/white. (single connector) z 1-injectors switched live-red---T14a pin 5 10amp-red/purple. T10W -White connector pin 4 - white/red to clutch pedal switch (Clutch pedal switch in car)-using vw brake switch other side of terminal to earth Diag port; Pin 4; earth. Pin 7:T10 Orange pin 1 - grey/white. pin 16; fused switched live . Pin 10; battery live. hope this is of help to all those doing the mk3 !