Has anyone purchased a Nitro amp recently that improved the soundbar? If so, where did you get it?

I purchased one from moparonlineparts.com that had no effect (part #05091012AK).

Thanks.

 

No affect at all. That's what I ordered. They won't take it back either. Does it matter what year nitro you order?

 

This is why I believe that there must be something inline on the the speaker wire like a micro farad capacitor to lower the rear sound hidden out of site . I wish I had my jeep with me I've been out of town for the last 2 months for work I would love to see if there is something hidden in the sound bar .