as you already know from “Door lock switch fallen apart” I’m going to replace the central door locking switch in my SII car. For all SIII owners: SII cars do not operate the power locks from the doors; instead you have to open the doors with a key, enter the car and then operate the power locks from a switch that is mounted at the location of your sunroof switch. In a way this switch on SII cars is very similar to the type of switch commonly used these days to permit passengers to lock up the cabin in unfriendly environments.
As much as I like the charm of the original setup - someone said that in the 1960s no gentlemen would not have opened their passengers’ doors first anyhow -, I’d prefer the opening and closing procedure of today as a matter of practicality. I also realised that the particular switch as used in SII cars should make it very simple to install an aftermarket remote control system as I’d only have to tap the remote signal receiver + relay into the wires available at the switch anyhow. And since I’ll replace the switch and have to remove the central console top anyhow to get access, I could just as well take the chance and install such a system right now and together with the new switch.
So my question goes whether any of you has gone through this, what type of system did you use, are there any pitfalls? A short search revealed that there are many systems around, most at very reasonable prices, but also typically adapted to much more advanced technology: To my (limited) understanding I’d only need permanent positive and negative for the triggering circuit of the relay and one negative for the main circuit and two positive out for lock and unlock. Did I miss something?
As always, all ideas are appreciated!