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I am interested in swappin out the factory Becker Grand Prix head unit in my '87 560sel. I have a few questions:<br> 1. Are the factory speaker tradional 4ohm speakers?, some posts I have viewed refer to 2ohm's, although I think that might be only in cars equipped with the Bose system<br> 2. Can I just hook the unit up to a wiring harness and slap it in? Do I need to do any additional wiring?<br> 3. Other that possible reduced signal quality, will not bypassing the consol mounted fader knob cause me any problems?<br> Thanks
 

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mb uses a funky mount system for the fronts and the rears, you can only fit a 3 1/2' in the front, i used infinity kappas and up to 6 1/2 in rear i used a 6' mb quart. you can hook up to wiring harness but if you are going for sound quality and using an amp i suggest you rewire the speakers with a higher quality thicker gage wire, bypassing the fader will not cause you any problems, your new deck as long as it is quality will solve that problem, good luck
 
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