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<blockquote data-quote="mbworldz" data-source="post: 6692823" data-attributes="member: 619686">Hi guys, I am new to this forum.&nbsp;&nbsp; Recently I installed a pioneer avic-z110bt in my 2007 Mercedes E Class.&nbsp; But for some reason the stock speakers are not working well.&nbsp;&nbsp; I guess the installer didn&#039;t do it right and just force some of my speakers to work.&nbsp;&nbsp; Someone told me that for using the after market head unit, I will need to change all the speakers and amps as well.Couple days ago, all in a sudden my rear passenger and driver side speakers no longer functioning, (include the Sub.W)I no longer can adjust the balance in my head unit to control the sound from the back,&nbsp; all I see is just left to right,&nbsp; not front to back.I am thinking that could be the wiring and compatibility problems that damaged the speakers.&nbsp; &nbsp;&nbsp; Right now I am thinking to get new speakers and a new amp to boost the sub w.I want some feedback on the following items , and see if that would sound ok to my car.Front and rear speakers using MB Quart RUI 216<img src="http://www.dcaudio.es/images/RUA%20216.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />As for the amp, should I just use a mono one just for the sub w.&nbsp; or get a 6 channel for&nbsp; better sound ?Would this a good choice?JL Audio A6450<img src="http://akamaipix.crutchfield.com/products/2007/136/p136A6450-f.jpeg" alt="" class="fr-fic fr-dii fr-draggable " style="" />Any expertise help will be great.&nbsp; I don&#039;t know much about car audio components :-(</blockquote>

[QUOTE="mbworldz, post: 6692823, member: 619686"] Hi guys, I am new to this forum. Recently I installed a pioneer avic-z110bt in my 2007 Mercedes E Class. But for some reason the stock speakers are not working well. I guess the installer didn't do it right and just force some of my speakers to work. Someone told me that for using the after market head unit, I will need to change all the speakers and amps as well. Couple days ago, all in a sudden my rear passenger and driver side speakers no longer functioning, (include the Sub.W) I no longer can adjust the balance in my head unit to control the sound from the back, all I see is just left to right, not front to back. I am thinking that could be the wiring and compatibility problems that damaged the speakers. Right now I am thinking to get new speakers and a new amp to boost the sub w. I want some feedback on the following items , and see if that would sound ok to my car. Front and rear speakers using MB Quart RUI 216 [IMG]http://www.dcaudio.es/images/RUA%20216.jpg[/IMG] As for the amp, should I just use a mono one just for the sub w. or get a 6 channel for better sound ? Would this a good choice? JL Audio A6450 [IMG]http://akamaipix.crutchfield.com/products/2007/136/p136A6450-f.jpeg[/IMG] Any expertise help will be great. I don't know much about car audio components :-( [/QUOTE]

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