There is indeed a mount and grill in the FJ62 dash for a single speaker. If you drop the EFI ECU then remove the glovebox, you can gain access, there's quite a bit of room up in there. There are a pair of M6 studs in the dash pad sticking down, presumably for mounting a speaker, although I'm not aware of any FJ62's in this country that have a speaker there. It would be a good place to put a remote speaker for your CB. I have the crossovers for my MB Quart front speakers stashed up there.