Where is the vacuum hose on your 05 scion xb?

When you change the car battery in a 1999 Renault megane do you have to put a code in before it will start? How do you check the transmission fluid on a 99 volkswagen new beetle 1.8 turbo there just doesn't seem to be an easy way to do anything on this car except check the oil? Why would reverse work in a manual trans and not forward? What parts fix an oil leak? What are external regulators and what do they do? Where is the main fuse box located on a '92 Mercedes 190E? Project feasibility study example? What is the fuse box diagrahm on a 1997 Lincoln mark viii? How to identify fast blow fuse? National bird of Spain? Where can I find cheap EverStart batteries? How do you repair a brake master cylinder? What is the part of a wheel called? Does 2000 4cylinder grand am have a timing chain or timing belt? Where is the thermostat located on a 1994 Toyota Camry XE? Where can one purchase slide converters? What does it mean when the check engine light and red dot light are flashing and the car wont start in your 03 dodge neon? Are P195 60R 15 tires interchangeable with P185 65 R15? What does a cam do in a engine? What plugs do you use in America?