[ctuna]

HI Fi amps are dirt cheap on Ebay.
Why because a lot of people go aftermarket to get something better.
Just because it come out of another model does not mean the amp is
any different. They have three main stereo types that haven't changed
in a long time. And they share the same parts mostly.
HI Fi equipped cars made from 06 to 09 have the black Hi Fi amp in the US
those made from 2011.5 onward have Silver Hi Fi amp.

Doesn't it already have a Hi Fi amp , if it has Hi Fi!
Why are you doing this ?

Hi Fi amps for the F series may have a center channel .
The e90's did not I don't think anything in the same year range
the e90 had Hi Fi's with a center channel . Logic 7 is another story.