I have installed a Pioneer Avic-X1R in my Impreza, but i can´t figure out where to connect the "Speed pulse wire" from the Pioneer hide-away unit.

Can someone help me?

try this link might be of some use, http://www.apexi-usa.com/pdfWiring/2.pdf.

Ty, but that diagram didn´t show ecu-pinouts for Impreza 99-00

On the uk models buddy,i connected it to the yellow/green wire on the back of the clocks/speedo,worked out fine on a 1999 sport,and a 2003sti

give it a whirl

cheers marcus