Ok so I wired up the headunit harness to my scosche kit harness... on the headunit harness I have the Blue wire(antenna control), purple (reverse gear signal) which goes to the rear taillight, pink(speed signal input), black(ground) which is obvious, and the blue/white(system remote control)

On the scosche harness I have black(ground), pink(says TEL MUTE), black/white(doesnt say anything), brown(doesnt say anything), orange/black(dimmer ground), green/white(doesnt say anything).

Do i hook up speed signal input to the pink on the scosche? or does that need to be connected to the ECU? The scosche doesnt have any blue wires so where would those go? Do anything go connected to the unused wires on my scosche harness? Please help as I want to install this asap... Just want to get most everything done before it goes in! TIA!

The Scosche harness should have come with a diagram telling you what each color wire was for... so what are each of those unconnected wires for?

If the wiring kit didn't come with a diagram or anything, then have a close look at the wires themselves. The Rav4 harness kit I bought didn't come with any information, but there was very small, light (silver coloured) writing on each wire that described what it was for.

Cheers!

it didnt come with a diagram. I looked and seen the light gray writing, but some of the wires dont say anything on them.

I used this forum to help me with my AVIC:

http://www.toyotatundraforum.com/audio- ... -pics.html

Hope this helps. Tons of great info here.