Why did you use an LOC? Did you measure the voltage coming from the wiring?
DIY: 2018+ Add a Amp Install Non-Bose
Parts used:
SCOSCHE NN04RB Reverse Stereo Harness
SCOSCHE NN04B Stereo Harness
Speaker Wire
Pinout:
![]()
1. Since the harness has more connections than needed and missing in 2G in the pinout above. We have to remove and rearrange some of the pins. Used a bobby pin that had been dremel down in both width and height.
How to remove wires. Just push into the flat slot and pull the wire out the back.
![]()
Removed the Orange, Orange/White and Blue wire from the new harnesses. Added the blue wire back to the slot under the red wire.
How both harnesses should look afterwards.
![]()
2. Solder all the wires together and add some speaker wires in between matching speaker wires. Add a extra wire to the ACC if you want a amp turn on. You will end up with something like this:
![]()
Wrapped upped in Tesa tape:
![]()
Ended up with 3.2V coming out of the wires which you can leave as is or solder RCAs on.
SCOSCHE NN04RB Reverse Stereo Harness
SCOSCHE NN04B Stereo Harness
Speaker Wire
Pinout:
1. Since the harness has more connections than needed and missing in 2G in the pinout above. We have to remove and rearrange some of the pins. Used a bobby pin that had been dremel down in both width and height.
How to remove wires. Just push into the flat slot and pull the wire out the back.
Removed the Orange, Orange/White and Blue wire from the new harnesses. Added the blue wire back to the slot under the red wire.
How both harnesses should look afterwards.
2. Solder all the wires together and add some speaker wires in between matching speaker wires. Add a extra wire to the ACC if you want a amp turn on. You will end up with something like this:
Wrapped upped in Tesa tape:
Ended up with 3.2V coming out of the wires which you can leave as is or solder RCAs on.
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1 - 11 of 11 Posts
Thanks for the suggestion. Measured 3.2V coming out of the TAU. Removed the Line out converter and soldered on RCAs. 20% gain on the amp will get my Infinity speakers super loud now. Will update the thread later since it would not allow it for 10 days.
Does that tee harness plug into the Bose plugs or TAU plugs? I wouldnt mind using a plug to plug connection when i do mine. And that 3.2V will pair nicely with my Kicker ZR and ZX amps 
Straight into the TAU if you have the newer 20 pin style connector on the top port. As long as you get the regular and the reverse stereo plugs and repin that one missing pin.Does that tee harness plug into the Bose plugs or TAU plugs? I wouldnt mind using a plug to plug connection when i do mine. And that 3.2V will pair nicely with my Kicker ZR and ZX amps
You are very good to show the Stereo-Harness on the removal wires. Could you please let me know how to remove the wires of Reverse-Stereo-Harness, thank you.Parts used:
SCOSCHE NN04RB Reverse Stereo Harness
SCOSCHE NN04B Stereo Harness
Speaker Wire
Pinout:
![]()
1. Since the harness has more connections than needed and missing in 2G in the pinout above. We have to remove and rearrange some of the pins. Used a bobby pin that had been dremel down in both width and height.
How to remove wires. Just push into the flat slot and pull the wire out the back.
![]()
Removed the Orange, Orange/White and Blue wire from the new harnesses. Added the blue wire back to the slot under the red wire.
How both harnesses should look afterwards.
![]()
2. Solder all the wires together and add some speaker wires in between matching speaker wires. Add a extra wire to the ACC if you want a amp turn on. You will end up with something like this:
![]()
Wrapped upped in Tesa tape:
![]()
Ended up with 3.2V coming out of the wires which you can leave as is or solder RCAs on.
1 - 11 of 11 Posts
