on a mk3 is the abs loom connected to the engine loom?

[paceo 22]

as title, i think its wired in with the engine loom if i am right on a mk3?

 

basically thinking of buying a rotton obd2 turbo and sticking the engine loom etc into my obd1, but as you know early and late mk3 abs is different s i was wondering if that needs to be swapped over!