He works in the garage at the back of the shop doing installs and elec repairs could be the same guy, tell them the Jock with the Green TVR sent you Graeme
I know i'm a bit late on this but have you tried the sound gallery? They have fitted a few alarms for me in the past and their workmanship is very good, and i'm fussy about who i let go near my car with tools! If you haven't got it sorted yet then give them a call.