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The air-cooled electrical system is very simple. A Bentley or Haynes manual is VERY HELPFUL as they have electrical diagrams in them. And even though the diagrams are not colored they do have the wires coded so you know what color(s) to look for. An volt/ohm meter is also a very helpful tool and can be bought very cheaply at most FLAPS and electronic stores (<$20 for a cheapy). For lighting, make sure you wire the bulbs in parallel (NOT series!). Doing so will allow equal lighting of all the gauges. Just tap into the stock wire that is used for the clock illumination (see below). |WRONG: | LIGHT LIGHT LIGHT | | | | | | | | | | | | | | |POWER-------+ +------+ +------+ +------GROUND |CORRECT: | +----------+----------+------GROUND | | | | | LIGHT LIGHT LIGHT | | | | |POWER-------+----------+----------+ For the tach you will need to run a wire from the coil to the tachometer. Same goes for the temp sending wire and the oil pressure wire. The VDO instructions will tell you were the wires go. I know the CB Performance catalog has the same directions in the back of it. Wires can go through the rear firewall wiring harness seal opening if you carefully use a coat hanger to pull the new wires through. You can always drill a hole in the firewall and route the wires through but please make sure you coat the new hole with a primer to protect the metal from rusting and seal the wires and openiOuŸäRTV (silicone sealant) to keep water from entering the cabin. Wiring on the inside of the car can then go from under the rear seat, over the kick board and under the carpeting that's next to the driver's seat belt and under the floor carpeting along the left of the clutch pedal and up the fender wall (again, behind the carpeting). I believe there are some pre-existing holes in the kick board that you may be able to route the wiring though. I did this for my powered radio antenna (located in the rear fender). A switched power lead can come from one of the right-most leads on the fuse box (a meter makes things easier here). Grounds are everywhere! Just look for any brown wire and it'll lead you to ground (brown wires are ground wires so you could tap into one). Toby Erkson air_cooled_nut@pobox.com <-- Please use this address for email '72 VW Squareback 1.6L bored and stroked to 2.0L, Berg five-speed '95 VW Jetta III GL 2.0L, P-Chipped, Jamex sport suspension Portland, Oregon, http://www.pobox.com/~toby_erkson/ >-----Original Message----- >I recently purchased a few VDO gauges (tach, oil temp, and oil >pressure) but I'm not sure how to wire them. I pulled out >the clock to >install the tach so I have those wires to use. I just need an ignition >switched 12v lead, a lead switched by the headlight circuit, and a >ground right? ------------------------------------------------------------------- List info at http://www.vwtype3.org/list or mailto:help@vwtype3.org