Finally pulled the trigger on the rear window interior switch mod. I followed inspiration from
this thread and followed
@
papabeach
great idea to just tap into the wiring at the ECU rather than back in the guts of the door.
I opted for a 1st gen 4Runner window switch because 1) I had an extra 2) it's small and 3) still OEM
Trimmed a hole for it above the highest clip post. This switch body has a little alignment tab on either side so I had to trim that out too. Patience and a box knife worked best.
Test fitting, looks good. This one has 5 wires because it has a little interior lightbulb. I decided not to use it since I don't need this functionality.
The switch fits well higher up on the panel. This part of the panel is slightly curved so I clearanced the mounting face of the switch with a dremel to fit up snug so it can't wiggle around.
I like the fact that the switch body has two little rails on either side so an errand box would not easily hit it. It also takes a decent actuation force and has a solid "click" when pressed.
Fitted into the panel with a little wiring harness. I used some loctite plastic adhesive activator on the panel itself since it is PE or PP and hard to get normal glues to stick to it. Rather than using the loctite glue (which is basically superglue and is very rigid) I used some E6000 epoxy so it would stay tough and rubbery. After curing for a day the switch is in there very solid.
Snapping the panel back on. The corner of the switch body closest to the snap had like 1/32" of interference. I used a grease test to see where it was hitting and just pounded the sheet metal back a teeny bit -- all good. Wiring harness is zip tied to the snap boss as a strain relief. I did not need to trim a hole in the sheet metal.
Will take a better interior shot when I have some better light but here it is!