Building a 3 Zone system

[bookermorgan]

I am currently looking at taking my 2 speaker audio system and trying to expand it to have 3 zones (Dining, Loft, Outdoor)

I am wondering the best way to go about doing this. I did pick up a 4 zone switch from RadioShack (The Source) but it really only wants to power 2 zones at ones, in testing.

Please do not turn this into a Outdoor Speakers vs. No Outdoor Speakers thread.

[bookermorgan]

Should I just go and buy a new Stereo like this...
http://www.ebay.ca/itm/RV-Stereo-12-Volt-Wall-Mount-Blue-Tooth-Stereo-and-DVD-Player-/181193922988?pt=Motors_RV_Trailer_Camper_Parts_Accessories&hash=item2a2fffd9ac&vxp=mtr&_uhb=1

[bookermorgan]

Yes that would be best. But I guess I could have only 2 at once ie Dining and outdoor

[LittleBill]

all at the same time?