if ur dealer complains about it, means ur dealer is not good. find another one. blaming something on struts is ridiculous.
Blaming a suspension problem on aftermarket suspension parts is reasonable. Blaming the strut bar for an electrical problem, on the other hand, is ridiculous.
The smart thing to do is simply remove it when you take it in for any type of warranty claim that has to do with your suspension. Save yourself the headache.