I have a '65 Mustang coupe with two-speed windshield wipers. Tried adding an interval wiper device over the weekend without success. The device I'm trying to install is a basic black box design with a knob to delay from 2 to
20 seconds and off.I spliced into the low speed wire from the stock wiper control knob. The device does pause the wiper for the set time frame, but at whatever the location happens to be, i.e. in the middle of the wipe rather than returning to 'park.' I tried to find a 'park' signal cable as the device I'm trying to use has a lead for it, but without success.
Fortunately, I only cut one wire to try this and was able to reinstall everything with little disruption sans the wiper delay device.
Has anyone been able to successfully install a device like this? Is it even possible? I understand some systems simply will not work with a device like this.
FWIW, I was going to mount the box under and behind the dash so as not to be visible from the inside the car. Adjustments(which I figured to be minimal) would be affected by reaching just under the dash and turning the knob.
Thanks in advance, Nels