Enough of the wiring matched the factory manual that it gave me some good clues about which wires were positive and how they were wired into the plug. I posted a new photo above showing the cut ends and the wires I saved. I ended up making the assumption that all of the (+) wires were on the same side of the plug and I kept it consistent that way. I did not do any battery phasing checks, etc. but just ended up wiring all 4 speakers the same way...
By the way, I forgot to mention this...Has anyone put their ear up to the factory tweeters to see how much sound they put out? It's close to none
