gti 16v rev counter HELP

[gazpowells]

morning 

Going to fit an aftermarket rev counter 2 the golf today.. where is the best place 2 connect the signal wire

thanks in advance

[Rmachines]

I had a nightmare with doing this!  I tried all sorts,  the alternator has a connection for it.. that was way out,   coil feed wouldnt work,  signal cable to stock counter might work but couldnt find it... ended up taking it back, but soon after some one figured it out and did it so there must be a way!   

I know thats not helpfull but just so you know... the usual places to connect dont work    Trace down the ECU signal cable.

[gazpowells]

thanks mate,  I have a wiring diagram for the ECU pin outs so will have a look and try that