Hi all. I've already upgraded my front and rear speaker in my 4200 GT which has significantly improved the sound. However the built in amp in the NIT struggles to power then properly so I am planning on fitting a new amp. On the back of the NIT there are C connectors 1,2 and 3. C1 i believe is line out for connecting an external amp. My question is - is this a line out at speaker voltage level or is it a true low level line designed to feed an amp? Hope this make sense. Thanks
