Hi Karl,

I tapped into four wires: R+L turn signals, brakes and running lights.
Add a ground and it brings me up to five wires in the circuit.

I am not running relays, I'm powering the system using the bus wiring
and so far it's working well.

The Westrailer wiring is using two harnesses.

1.  standard 4-wire flat harness with

Yellow = Bright Red Left,
Green = Bright Red Right,
Brown = Running Lights
White = ground.

2. A simple 2-wire connector for right and left turn signals (orange
lamps)

If someone with a standard harness borrows the trailer (or I borrow
their vehicle to tow the trailer) it works with the red lights only. If
I use the westfakia to tow the trailer then I get orange turn signals.

Happy trails,

Greg Potts
Toronto, Ontario, Canada

1973/74/79 Westfakia Conversion **Bob the Tomato**  LY3H
1977 Sunroof Automatic L63H/L90D
1988 Vanagon GL 8-passenger Automatic
http://www.pottsfamily.ca/westfakia
http://www.busesofthecorn.com

On 6-Apr-05, at 3:31 PM, Karl Ploessl wrote:

> thanks Greg and to the others who answered. Still questions:
>
> Did you tap into the single lines (brakes, taillight, signal)? Are
> you using relays, directly from battery? I looked into some
> commercial solutions and in the moment I am confused as I don't know
> how all these different plugs physically look (just looking at
> pictures is unfortunately is not a big help to me). And I found round
> ones (6 connections, 7 connections, flat 4...)