Nah, that's wrong you'd be putting both speakers on the left channel, @500e has got it correct.As for the speaker leads, one speaker's leads should go to block II, pins 5 and 6, and the other to pins 7 and 8.
I've seen work that was done by someone with a degree in electronics and I'd say wiring a car stereo would have been beyond his abilities, I'm not sure he could finish wiring a mains plug with 2 wires already done god knows what they actually teach them for a degree, working out P=IxV in his head seemed to be alien to him but it was okay because he had an App on his phone that did the sums for him.Once upon a time you didn't need a degree in electronics to wire in a car radio.
To you and me it may be all there in print but sometimes people need a bit of help when presented with lots of information they are not familiar with.You have it all in print on the label
"Wire both up, both lefts together and both rights together.
That way will give you most power and will still be split."
Hmmm - not sure about this - the front amp would then be firing up the fundament of the rear amp (and vice versa) - If your lucky one amp would blow up. If not they both would.
Thats what I think anyway - but what do I know???
Nah, that's wrong you'd be putting both speakers on the left channel, @500e has got it correct.