Recently serviced my new purchase using 10-40 semi synthetic however since the service I have noticed a sligjt "tappetty" rattle when cold, this disappears when the engine is warm, should I be using a thinner oil? Whats everyone else using?

Shoot me down in flames if this is a stupid question but as I very rarely use the sat nav (more fun getting lost!) is it possible to wire a dvd player in the rear of the car which would utilise the original sat nav screen?

Just had the system regassed and discovered a major leak! No dye required as you could actually hear it, so after a quick strip down of the front end discovered a hole in the top of the air con rad, after a phone round eventually found new one for sensible money (£98+VAT) but have spent all day...