Let me know what you find out.
I was trying to do the same thing but found some very odd results.
I would have to dig up my notes, but when I was testing with my VOM, it looked to me like VW did not follow either way.

If I remember correctly, it looked like they did not ground it through the switch, but used +12V and -12V to have a floating ground.

I tried hooking up the kit I had - an Autoloc - but it did not work.
I have not yet had the time to troubleshoot it.

Todd

 -------------- Original message ----------------------
From: Matthew <mpteleski@YAHOO.COM>
> installing a wireless entry system for my wife's
> carat. it was about 30$ on ebay.
>
> the styem will work with a + or - mode system. Keep me
> from actually having to use my electrical
> troubleshooting skills and somebody tell me about the
> power lock system.
>
> A + system applies 12V through the switch to
> lock/unlock the doors
>
> A - system allies ground through the switch to
> lock/ublock the doors
>
> Then there is the vacuum system which is totalyl
> different.
>
> anybody got first hand exprience here? The weather is
> no good for working on the busses, so would rather do
> arm-chair research than actually wrench.
>
> Thanks
> Matthew
>
> 90 carat (to be tdi by year's end)
> 86 syncro westy 1.9TD
> 86 syncro singlecab
> 82 diesel westy 1.6td for sale
> 72 type-II riviera
>
> and more....
>
> "Racing with the wind and flirting with death
> So have a cup of coffee and catch your breath"
>
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