ignition control module

hi everyone, i got a question about my 99 passat 1.8. i'm having a hard time finding the ignition control mudule. where ever i find a ICM they show me the ICM that has two holes for the bolts to go through and its flat on the bottom. and the one i need has no bolts and its not flat on the bottom. also it is place on the top of the filter box. so if anybody knows what i'm talking about please help out. thanks