WHICH TWO WIRES? tapping the factory amp wires for rca signals

[NickD85]

I'm tapping into the wires coming out of the factory amp behind my rear drivers side quarter panel, running a line output converter, and using that as the RCA signal for my subwoofer amp. I see 12 wires coming out of the top right corner of the amp. I'm assuming that these are six pairs, one for each speaker. Trouble is I'm not certain of which wires are pairs- none seem to come out together. I'm also not sure if just any pair will be my best bet- is the signal coming from the amp the same to every speaker? (specifically tweeters). From the top left of the wire group i see

RED BLACKBLACK GREENGREY GREENGREEN PURPLEPINK BLUEBLACK GREEN

so which two??? I may just try to pop out one of my door speakers, and see what color those wires are, to narrow things down/ tap in at the speaker end instead.thanks in advance,-Nick

[NickD85]

so after removing some of the black tape that covers the wires after leaving the amp I've noticed a few more things that might be helpful. the top RED BLACK combo gets twisted together, as does the bottom BLACK GREEN pair. Maybe these pairs are for the rear speakers? Also, the BLACK GREEN pair right below the top RED BLACK pair is of a heavier gauge wire. Could these be the inputs for the amp?

[K03sport]

I'll try to help as best I can...using the service manual, but it really is tough to read. Here it goes...

Those with BOSE.

Into the rear speaker amp from HU

11 - G/W - Battery9 - LG/R - Remote on/off20 - LG - RR SP RH (+) in7 - PU (purple?) - RR SP RH (-) in23 - no colorGround18 - P (pink?) - RR SP LH (+) in5 - L (lavendar?) - RR SP LH (-) in

Out of rear speaker amp to speakers

2 - LG - RR SP LH (+) out1 - B/Y - RR SP LH (-) out25 - OR - RR SP RH (+) out26 - B/P - RR SP RH (-) out24 - B - Ground

[Pwnin O'Brien]

Wire colors:

B = BlackW = WhiteR = RedG = GreenL = BlueY = YellowLG = Light GreenBR = BrownOR = OrangeP = PinkPU = PurpleGY = GraySB = Sky BlueCH = Dark BrownDG = Dark GreenFU = FuchsiaCW = Cloud WhitePB = Poop Brown

I made the last three up. Enjoy.

[Pwnin O'Brien]

Assuming you haven't bypassed the stock head unit, I would think that your best bet would be to tap the post-amp wires since you are setting up a line-out converter. However, you would also assume that you could just eliminate the line-out setup and possibly tap the pre-amp wires (unless the pre-amp voltage from the head unit is low, which it probably is). The question I have is when you do a line-out converter setup for a mono subwoofer(s), do you just patch together the line-out signals for your left/right to make one signal?

[NickD85]

thanks for the help guys. Pwnin, I'm trying to tap into the wires that go to the rear speakers, as you said, post amp. K03... thanks for taking the time to look that up for me. One question- what do those numbers correlate with?Thanks again,-Nick

[Pwnin O'Brien]

Also, the amplifier in your rear driver side quarter panel only amplifies the rear door speakers. Your front speakers are self-amplified (each front door speaker has an amplifier attached to it inside the door) and your tweeters are wired in parallel to those two front door speakers. So when you tap the post-amp wires for your line-out converter, you will only be receiving the audio for the rear door speakers, which won't matter since the only thing that matters is the left and right channels.

[Pwnin O'Brien]

Those numbers are the wires numbers in each harness

[K03sport]

Those numbers are the wires numbers in each harness

What he said...

[Adnan]

what i got here is

left rear speaker :-Black/Yellow(-)-LT Green (+)

right rear speaker:-Orange(-)-Black/Pink(+)

Remote :LT Green/Red

[Adnan]

btw guys i lost my inline converter somewhere

i got my amp back and wanna test it,does anything think it would work if i wrapped copper wires around the rcas then spliced it on to the speaker wires?