Amusing idea that the amp has 125w x2 = 2800w RMS w/e. Does w/e mean this only happens at weekends ? Because I think I have neighbours with an amp like that.
The 6 ohms bit suggests that you will not get away with connecting two pairs of speakers at the same time (2x6 ohms in parallel = 3 ohms which is a bit on the low side as the amp is likely to be expecting 8 ohms).
I have to advise against this project. Try connecting one pair of speakers at a time only.
"At speaker end my sonys have the cable built into the speaker unit itself while the ones i found have the little spring mechanism sort on them like the system unit."
Yes, the clue is in the spring mechanism -- just add wires. Get ones that have some sort of coding (either colour or a ridge on one conductor so that you can figure out polarity with ease). Get that wrong and it'll sound very odd indeed.