About to get one of these beasties.

It comes with the factory Sat nav / 6 disc changer job.

It sounds reasonable, but not upto the standard I would like. Therefore
improvment needed.

Does anyone know if :

a) the HU is anygood?
b) the HU has line outs, or an external amp?
c) the size of the speakers?


I have from my previous car a very good standard sized DIN Blaupunkt HU,
Blau 5 channel power amp, 8 inch sub etc etc.

TIA

Tim..