Clarification on Speaker Upgrade

I know this has done the rounds but i've seen conflicting information in seperate threads so better I ask.

I have a 2000 B5 A4, with Bose. Earlier this year I replaced the HU/ CD Changer and fitted a sub. So I have the HU connected to the original Bose speakers via the Bose amp.


So here is my question. Can I change the speakers ONLY leaving them connected to the Bose Amplifier? I realise I may not be getting the most from the speakers but at least it's a stepping stone and the result will be better than what I have. If this is possible I will, at some time in the future rip out the Bose amp and cables and replace them with something better.

Cheers guys.

That's a good suggestion Andy.... however it brings up another question.

I have 6 speakers. 2 In the front doors, 2 in the rear doors & 2 on the shelf. The HU only has 4 speaker connections..??