negative wire on the coil

[reevio11]

ive got a mk1 phase 3 r reg and can anyone tell me where i can find the negative wire off the coil my car has no distributor its got one of those electronic black boxes any help would be most appreciated thanks

 

[reevio11]

someone must know where i can pick up the signal from




chris

 

[reevio11]

bump

 

[reevio11]

anyone