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As I recall, (this was 15 years ago) I added a relay to switch the wiper motor on just enough to get it past the parking switch. I stuck some electrolytics on there for noise suppression and a copper shield (faraday shield) The cruise is an old Rostra unit, vacuum, and there is a writeup on it somewhere in the archives. The wireless controls DO NOT WORK with the old rostra units and I suspect with other ones as well... was never able to determine exactly why but set feature always wiped the memory so the resume feature didn't work. It may have kept the relay engaged too long and may work with a modern unit but it wasn't worth going any farther as the stalk switch was nice and convienent. Keith Top Notch Restorations topnotch@nycap.rr.com 71 Squareback 65 Notchback "El Baja Rojo" 65 Squareback "Eggcrate" 87 golf "Winterat" 93 RX7 "Redstur" -----Original Message----- From: Will McCreight [mailto:whmcc@attglobal.net] Sent: Saturday, April 15, 2006 10:35 AM To: type3@vwtype3.org Subject: [T3] Intermittent Wiper Delay--Success Keith, how exactly did you shield it? Did you pick up a automotive noise suppression device at an auto shop, did you have to put the circuit in a "Faraday Cage", and I'd be interested in your story on cruise control. Yes, I also have discovered that it is "noise" on the power lead that is making the relays fire erratically...with ignition on but engine off, smooth- ignition on and engine on, sl. erratic- engine on at higher rpm, real erratic- engine on, high rpm, lights on, sl. erratic. So it looks to be some combo of voltage changes and/or waveforms introduced by the coil/ignition and by the generator/voltage regulator, I surmise. Keith, is your cruise control vacuum-based or electronic? I had been intending the electronic, even with the wireless features for the switch head, but now with the problems with this single simple integrated circuit device, I must re-think this plan. Could it be that our T3's simply are too noisy for IC-based devices? How much effort should I be placing on getting the noise out? Some of the web sites I have read having to do with circuit noise suppression in the application of installing car sound systems speaks of inadequate ground, ignition coil noise (I have noticed that my tach needle will jump suddenly especially as I increase rpms--it will leap up and then settle back to the higher new rpm value, and do this several times), and placing one device too close to another, like wiper motors. I am going to at least place a store bought circuit noise suppressor into the power leads coming into the delay device today to see if that improves the operation. ------------------------------------------------------------------------ I bought a kit from JC Whitney and modified it a bit, The circuit was real noisy till I shielded it, it even kicked off the Cruise! Keith -- Will McCreight whmcc@attglobal.net Portland, OR (208) 661-6262 cell ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~