i have a 1998 audi a4 2.8 v6 30v. it has a weird clicking/ticking noise that only happens when im driving and push into the gas pedal. doesnt happen when the cars in neutral and i rev the gas. only happens when driving... has anybody had or seen this problem before? it happens in all gears and will start clicking whenever i push into the gas no matter how fast im moving. i attached a video too, a little hard to hear in the vid but its obviously louder in person. thanks in advance.

video----->IMG 0578 - YouTube