I decided I couldn't not do something tonight thermometer said 90 in the garage at 930 so I tinkered with the radio just a bit. Got the depth set on the faceplate. I also drilled the hole in the faceplate for the alarm led indicator.
Also got out my electrical tape and wrapped up some wiring that was in need of tidying up. So that's done now. Only an hour's worth of work and dripping with sweat. And nothing at all strenuous. I think this weekend I'll be on dawn patrol just to beat the heat.