OK, so, me and my bro just finished re-connecting my sub and amp. We moved everything to everywhere and now I got NO ENGINE NOISE thank f**k for that.
I'll give you a rundown of where things are now.
I split my rear door speakers, disconnected the rear door speakers and am now running, kicker 6x9's on the parcel shelf and a LOC now under the rear seat, running into a 1200w amp mounted under the parcel shelf. That is running a ***w 12" pioneer sub.
I ran the remote wire from 12v plug in centre console up through middle of car and up the drivers side of rear seat than across to amp.
Power is straight from battery. Negative runs just behind the rear passenger backrest next to the fold down centre bit where i connected it to the rear seat bolt.
Now that I have no engine noise I'm going to buy another amp so I can amp my 6x9's.
Thanks for everyone's suggestions the helped heaps.