Okay, thanks for your patience.
I am posting a diagram of each connector before the wiring identification. Please be aware that the pin numbers on the diagrams are as viewed from the back
of the connector, the side where the wires go in. Not
from the 'business end'. All pin outs are always viewed from the back/wire side of the connector.
1 - White - Multi display wiring
2 - Black - Multi display wiring
5 - Green/Orange stripe - Right side steering wheel resistance controls
6 - Brown - Multi display wiring
7 - Red - Multi display wiring
10 - Green/Black stripe - Left side steering wheel resistance controlsNote that none of the C110 wires will be used for an aftermarket installation.
14 - Green/White stripe - tail light input (auto dimmer)
20 - Blue - Accessory/Ignition on power
21 - Red/White stripe - Constant/memory power
22 - Black/Yellow stripe - Rheostat (manual dimmer, typically not used on aftermarket radios)
31 - Pink - Amplifier
32 - Brown - Amplifier
33 - Green - Amplifier
34 - Red - Amplifier
35 - Brown/White stripe - Amplifier
36 - Pink - Amplifier
37 - Yellow - Amplifier
40 - Black - Amplifier
41 - White - Amplifier
43 - Gray - Amplifier
44 - Light Green - AmplifierNote that none of the C113 wires will be used for an aftermarket installation.
So with that information, you are going to use the C105 wiring to hook up your constant power, your ignition/accessory power. If you have a dimmer wire, you will connect it there too, and if you have a rheostat wire (almost no aftermarket units have these) you would connect it there as well. Note that most people leave both the rheostat and the dimmer wire disconnected which provides full brightness on the new radio at all times.
When you removed the radio you probably noticed that there was a long bracket bolted to the dash support with a 10mm nut. This is the ground for the radio. You will need to take the ground wire from your new radio and run it to this stud and bolt it down there. The factory wiring does not have a ground wire, it grounds through that bracket so you need to run the ground wire there.
At this point you should have all of your speaker wires left on the harness of the new radio to connect. All other wires that are not connected (rheostat, power antenna, etc) should all be safely taped off. You should not have any
loose wire ends back there that do not have protective tape over them.
For the speaker wires we will need to extend all eight speaker wires over to the passenger end of the dash to the amplifier. The amplifier is located here:
Unbolt the amplifier and pull it down to unplug it.
The amplifier has two connectors on it, an 18 pin and a 12 pin. The 12 pin is the wiring from the radio that we will not be using so you can ignore it altogether.
The 18 pin looks like this:
1 - Gray/Red stripe - Right Rear speaker negative
2 - Yellow/Blue stripe - Left Rear speaker positive
3 - Red/Blue stripe - Left tweeter positive (unused or crossover to left front positive)
4 - Blue/Red stripe - Right tweeter positive (unused or crossover to right front positive)
5 - Black/Red stripe - Right Front speaker negative
6 - Blue - Amplifier power UNUSED
7 - Black - Ground UNUSED
8 - Gray - Subwoofer negative UNUSED
9 - Yellow/Red stripe - Right Rear speaker positive
10 - Gray/Blue stripe - Left Rear speaker negative
11 - Orange/Blue stripe - Left tweeter negative (unused or crossover to left front negative)
12 - Orange/Black stripe - Right tweeter negative (unused or crossover to right front negative
13 - White/Blue stripe - Left Front speaker positive
14 - Black/Blue stripe - Left Front speaker negative
15 - White/Red stripe - RIght Front speaker positive
16 - Blue - Amplifier power UNUSED
17 - Black - Ground UNUSED
18 - Yellow - Subwoofer positive UNUSED
You can leave the amplifier installed or take it out entirely, but you must leave it unplugged.
Connect the speaker wires for left front right front, left rear and right rear speakers to the identifications above.
The left and right tweeters you can wire in parallel to the front speakers (just wire the left front positive wire from the radio to both left front positive wires on the amp for speaker and tweeter and so forth) or you can get a crossover installed in between to split the signal.... or just leave them unhooked etc.Do not
connect anything to the other wires on the amplifier connector. We are only interested in the four primary speakers and their eight wires, and the tweeters if you choose. The power, ground, and subwoofer wires will be left untouched, as will the other electrical plug on the amplifier. Again the connectors must be left unplugged from the amplifier as well.
I can't emphasize this enough.... when you are done wiring things up, make sure everything unused is taped up. If you have wires from your radio harness or an adapter harness that are unused, tape them. Even if they are cut clean with no exposed wire, they will
find a way to short out if you do not tape up the ends.
If you have any questions just let me know.