The round thing is a capacitor and the flat contact shares a slot in the inst cluster with the voltage regulator to stop radio interference.
Nice. I'd go full wheel-covers, for that sleeper look.
Police wheel covers look good on anything if it's Mopar.I may end up doing that mmissile, but I am going to try the cop hubcaps first and see how I like it. I'll post some pics when I have it done and see what you all think. Remember, this is a 4 door with a 318, but I would like it to look a little cool!