This feels like a stupid question, but are we sure it is asking for the GPS CDI and not one of the localizers LOC1 or LOC2 or something else? Been a bit since I did this one and I forgot about it right after passing the exam. 
This feels like a stupid question, but are we sure it is asking for the GPS CDI and not one of the localizers LOC1 or LOC2 or something else? Been a bit since I did this one and I forgot about it right after passing the exam.