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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > ConnectedDrive / I-Drive / Navigation Related Discussion > Budget friendly / Cheap CIC retrofit!!!



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      08-01-2020, 09:31 AM   #45
smass
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Originally Posted by mtandre21 View Post
I am in the process of retrofitting cic and logic 7 to a non nav car. Do i just take the whole harness from one car to the other? Are the aftermarket navigations any better?
For L7 retrofit you can use a complete harness but you don't need it. Getting the front left and right speaker wires out of the dash is not easy. The passenger side wiring gets mixed up in the fusebox wiring. You really only need the L7 plug with rear door and center speaker wiring. The rest can be spliced together. With that said, since the rear deck and front seats are out for speaker replacement, you can easily use the new L7 wiring for those. Rear door, center and sub wiring all travel the same path under the drivers seat to the console.
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      08-02-2020, 01:58 AM   #46
ptpending
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Originally Posted by smass View Post
For L7 retrofit you can use a complete harness but you don't need it. Getting the front left and right speaker wires out of the dash is not easy. The passenger side wiring gets mixed up in the fusebox wiring. You really only need the L7 plug with rear door and center speaker wiring. The rest can be spliced together. With that said, since the rear deck and front seats are out for speaker replacement, you can easily use the new L7 wiring for those. Rear door, center and sub wiring all travel the same path under the drivers seat to the console.
i cannot agree with all these statemens because i've dissasembled few e9x harnesses and did some installs
audio harnes is separate from main harness
all audio wiring is going out from headunit down to the tunnel and then by the left side goind to door.
and passenger wiring coming out from the tunnel and crossing it between gearbox stick and dashboard and goes to passenger door near seat
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E91 2006. Retrofits:High beam assistant, Individual Audio, Autodim mirrors, CIC, Combox(USB and Bluetooth), Electric Sport Seats, Light package, Front PDC, Heated Steering Wheel, Happy Robot, Climate Comfort Windscreen, Blackline rear lights.
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      08-02-2020, 09:40 AM   #47
smass
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Quote:
Originally Posted by ptpending View Post
i cannot agree with all these statemens because i've dissasembled few e9x harnesses and did some installs
audio harnes is separate from main harness
all audio wiring is going out from headunit down to the tunnel and then by the left side goind to door.
and passenger wiring coming out from the tunnel and crossing it between gearbox stick and dashboard and goes to passenger door near seat
Just to clarify, my statements were in reference to removing L7 from a donor car and adding that to car that already has an amp and speaker wiring in the trunk. Your statements are accurate for a retrofit where only the head unit powered the speakers and there was not an amp with wiring in the trunk.
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