I am adding the electric cruise control from a 98 4runner to my truck, and I have a steering wheel from an 04 Corolla S (has the controls). Anyways, my question is does anybody know of a good way to run the wiring in the steering column to the steering wheel? I tried just leaving slack for it to coil up, but I dont like the way it is getting bound up in there. Does anybody know of some sort of gyro that I could put in there? I need to run 4 wires.

 

I've seen some with a coiled external cable (like a phone handest cord). Otherwise, you could try Painless Wiring, they have a sweet wireless 4-button control (steering wheel mounted) that can operate up to 6 relays. Otherwise, you'll need to make up a slip ring arrangement for the 4 wires similar to the horn.

 

How would I make the slip ring arrangement?

 

Look at the way the horn is set up. A metal ring with a sliding brush. For multiple circuits, you would need separate conductive rings with insulators in between.

 

unless the switches are TLT in which case you need only one slip ring?
(i.e. transistor level switching... dunno all the details... its how many later generation devices interface)

 

Yeah the switch is. The way it works is it only has a ground, and a signal wire. When you hit the switch it sends a signal to the CC ECU and the way the CC ECU knows what you are hitting depends on the resistance in the signal. It has a different resistor for each function. Although I still need four wires running. Ground, Signal, Main on/off, and horn. I am going to make a trip to the junk yard today and see if I can rob the slip ring arrangement from an SR5 truck like mine (they have cruise control, so they must have a slip ring arrangement to get the wires in there)

 

Any more luck with this? I'm very interested to see how you do, I've been thinking about trying something like this in my 89 4runner. The steering wheel in this thing is the ugliest part of the console I think, and a modern wheel would look way better. I'm not too sure how airbags would work out though, most modern cars have one.