OK , Makes sense. I will buy a medium HU and medium speakers. and Invest in a Car kit for hands free. That way I can switch it between my cars if needed (Duh! should have thought of that before) .
My only concern with the Handsfree car kits is that one tends to shout at them as the microphone is far away and loose one's voice after having a 20 minute conference call.
Added later:
I think Nokia speakerphone HF300 should fit the bill. No need to shout at the handsfree unit
