You can use the placement for your echo control but the echo pot is a dual pot as to where the original is just a single for your dimmer control. Resistance differences and such also factor in. I personally like to keep the original features as designed and install the echo controls on the rear because it's not really a function you always adjust but that's just my preference. Some do prefer them in place of other controls so I've done several that way too. Hope that answers your question.