The thick white insulated wires with the 6 (I think) wires coming out. Do these go to my rear speakers? (Rears currently don't work I hope this is why)

Should I just connect them by color, or did these used to plug into an amp or something? Was done by previous owner (who I hate so much)

 

Looks like they installed an amp. The large white cables probably went to the speakers from the amp. I think your best bet would be to run your sound using the stock harness/ connectors. Check to see if the rear speakers are connected to the original speaker wire and that those same wires are connected to the head unit.

 

Yes they are, the thick white ones with the 4 leads inside were connected to an aftermarket HU, [head unit] the lower one, [one to the left] was connected to the rear speaker outputs of the aftermarket HU, see violet and green wires in the butt connecters the upper one, [one to the right] was connected to the front outputs of the aftermarket HO, see the gray and white wires in the butt connecters.
The clear lead connected to the blue lead was most likely the trigger/control lead for an aftermarket amp so are the two white RCA terminals, [ preamp signal to amp from aftermarket HU.

I am unsure why speaker leads were added, all Honda/Acura come with stock front and rear speaker leads in the stock radio plug, along with power/acc/illumination and ground, there was no need to add speaker wire. 94