Rattling air feed pipe

[zxbx16v]

I'm pretty sure this must be a common problem on the mk3 blingo hdi,  the air pipe going over the top and then down the back of the engine is rattling about and constantly coming out of the pipe which drops down behind the engine,  is there a cheap fix?  I did consider replacing with silicone hoses.  Great van but this noise is starting to annoy. Thanks. 

Mark