Does anyone know if this has a pre amp out? Or an accesory line (Switch line for a sub)

If it doesn't have a pre amp out and I fit a line converter to one of the speaker channels will it effect the signal of the speaker channels?

TIA

Wow!

That's a massive response!

might help with a bit more info on the HU?

and id also check out Talk Audio - Mobile Electronics Online Magazine for some good advice on car audio (not saying here is bad but is a specific forum)

what is a dance hU? if its a standerd skoda HU that 3 colour skoda propriatry block on the back contians line out and remote line, bit of research and a hack to connect everything to it tho.