Adding to Mike Hill post:

Wetsand to 1000 - 1200 grit (Optional for some)
3m Heavy Duty Rubbing Compound (05955 - Gallon part number; it does come in quarts but I could not find it quickly) or
3M Perfect-it III (05936) and
3M Finesse-it (09048) and
3M Ultra Performance Paste Wax (09030)