I am installing an aftermarket HU and Modifry DCI with a honda wiring harness. The harness does not a green wire to connect to vehicle dash control. Please help. Should I buy a new wiring harness?

 

All you have to do is follow that pin and tap directly onto the wire..
Heres my harness with the green wire.. should be right next to the red one..

 

HIJACK




What do you have connected to the other end of those diodes?

 

The DCI wire harness should have a green wire, if it does not something goofy is going on. Let me know and we'll see about shipping a new one.

If you're talkng about the stereo adapter harness, (the one that connects to the factory wiring loom) then it won't have a green wire unless you bought it from me. Standard adapters dont have the extra wires for the dash switches and mute.

But you can still make it work if you wire the DCI green wire directly to the factory harness, there's a picture on my install page that shows both the adapter and the factory harness. The dash switch wire is green with a red stripe. Connect that to the DCI green wire.

I'm totally confused about the diodes in the picture. The DCI blue wire is connected to a diode (backwards) before going to the HU mute wire. Since this is a Sony Wired installation, the only MUTE you have is via the mute wire, which can't work in this configuration. Maybe this is a photo before he figured out the diodes were backwards.

Looks like he's trying to mute the HU from 2 different sources, the DCI and something else. There's no need for a diode on the DCI side - it either puts out a ground during MUTE, or it's high-impedance (open circuit) when not muted. If the other device puts out voltage when not muted, it should have a diode in line with it to keep the voltage from damaging either the HU or DCI.

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Thanks modifry, I purchased the HU through Crutchfield and the wire harness was free with the order.