Retrofit HiFi Speakers?

[ian in lancs]

I have a 2006 Z4M with Std Business Radio and Professional Navigation. Is it possible to retrofit the HiFi speakers? Is the wiring there? Is an amplifier required?

 

[davidpfitz]

HiFi and the Carver system both have amps, so it's not just a case of whacking a few extra speakers and wires in.

In reality, you're better off looking at replacing your current setup with something else - rather than try to 'upgrade' to the HiFi package.

Lots of good help here:

http://www.z4-forum.com/forum/viewtopic.php?t=796&highlight=subwoofer