iv'e got a laser diffuser and was wondering if halfords or the like would fit it ?
the reason i'm aking is the garages around my way are all crap.

 

I wouldnt' trust my Halfords to fit furry dice to my car!

For something like this that you want to make sure will work 100%, I'd go to a more professional place IMHO, a decent ICE shop will normally be more than happy to fit something like this, whereabouts are you in the country?

 

I have a K40 fitted by an auto elec out of yellow pages 3 yrs ago,problem is false alarms from low sunlight.Be intrested to know how you get on with yours.