The other guy who worked on it installed an aftermarket antenna switch that couldn't be seen, wasn't intuitive to use, and nearly caught fire. This one should do much better. It's only held up by some plumbing strap, but it might move to the center console later.
The knob just above it is for the interval wipers. Plans are underway to change the speedo to a stock electronic one (needle, but no cable), and the AMP gauge will become a VOLT gauge.