Rear speaker wiring amp bypass would this work?

Pat J

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2 red/white +ve feed from fuse 2
3 brown -ve feed

9 white rear left line in signal (from pin 1 on head unit)
4 brown/white line in ground (from pin 3 on head unit)
10 yellow rear right line in signal (from pin 2 on head unit)

5 red/blue power on signal (from pin 6 on head unit)

7 red/green left speaker +ve
1 brown/black left speaker -ve
6 blue/black right speaker +ve
12 brown/white right speaker -ve

Having got the following info from another thread for the amp wiring, I was wondering that as I have an aftermarket Sony HU fitted if I was to run wires direct from the HU to the speaker out cables for the rear doors on the amp would this work using the rear outputs from the stereo totally bypassing the amp. So this would then be powering all the speakers without having to use the amp.

All help and advice appreciated.:cool:
 
Ok, that's good. Am I right in thinking that your car already has rear speakers fitted?

Tom
 
Im atruggling to get my head around this still. Speakers in rear fitted along with tweeters.
head unit amp has 4 outputs.

i just dont know at what point i can splice in wires from head unit to speakers? Ive got harnesses coming out of my ears from the head unit so ideally if i could wire from headunit to cable harness from the plug in the drivers footwell that would be the easiest way. But if not how the hell do i do it?there must be a straight forward way to get these rears working as they should but with an aftermarket amp.
Any help appreciated
 
Images are from head unit. Then amp harness in footwell. Diagram from alpine head. Finally to rear left door. That plug cables run to door speaker and door tweeter.
 

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