Hello, I recently bought a BFII XR8 after my BA XR6 got boring. I LOVE the XR8 it makes such a cool noise and has all the bells and whistles. Anyway it has the premium sound with the dual zone climate control. I was thinking of changing out the sub to a similar 8 inch open air sub of better quality and changing the two speakers on the parcel shelf to decent 6X9s, and upgrading to a better amp, I want to run it off the standard ICC and not have to put in a new head unit as I think they look tacky and want to keep the stock look. Obviously I'm not looking for massive bass, and am not going to put a 12 in the boot. Will the 6X9s fit straight in where the stock ones are? Have any of you ever done similar things? Could you please help me? Thanks guys.