Yes, that is a neat trick!
In theory you could clean them in situ without disconnecting them, just lift them from the console and pop out the rocker. Be very careful not to loose any parts.
Yes it was me, and I also put them under the center console.
The A pillars are very convenient for the front windows, but will need two feed lines from the battery, and will still need to figure out the rear windows…
The ideal would be to bring the battery feed cables and relays inside the doors, but it’s waaay complicado.
I have chosen the center console as the best compromise, between the amount of work involved and functionality. One feed line to the relays and then tap into the existing circuit. Works very well.
Even installed a 20sec delay relay, so one can work the windows for 20sec after you turn the ignition switch off. My Range Rover has this feature and I like it a lot.
XJ Windows Relays upgrade.pdf (94.6 KB)