Well, maybe you could give a little more info, like what do you want to connect them up to....your computer or your dvd/tv set? Could you give any details of the speakers, like a model number...that way, we can look them up on google or the like, and try and help you.
get a basic pair of speakers, open it, there should be 2 wires, get ur speaker that u want to add (any type of speaker or whatever plays sound) and open it. you should see simular 2 wires. connect them to the normal speakers using wires, dk the tyoe but you should notice the type needed. And keep on doing the same thing to everyone of ur speakers. just the sound might be lowerd bc of less volts. I have 9 car speakers connected my speakers. and i got 3 of those car speakers actually half way in the wall.Its a very nice cheap way to use old stuff.
Uh, I really don't recommend what you're doing. First off, connecting car speakers to home amplifiers usually isn't a good idea because the ohms don't match. Car speakers run on 4 to 1 ohm systems, where as home speakers run on 8 to 16 ohm systems. Connecting a 4 ohm speaker to a 8 ohm output amp can seriously over heat and damage the amp. On top of that, daisy chaining many together will give you the same problem of having the wrong ohms. Unless you have two 4 ohm speakers per channel, and wire them in SERIES (- to amp, + to - of other spkr, then + to amp) that would make 2 4 ohm speakers 8 ohms.