alarming a detached garage

["JerseyMike" <clamdigger724@xxxxxxxxx>]

a buddy of mine had Slomans out to his house and put in a security system
but the company told him that they would have to run a seperate key pad for
the garage since it was detached from the main house (only about 25 feet
from the house).  i told him that was wierd since he has a telephone line
and a cable tv line running to the garage from the house.  am i wrong about
that or were they just trying to pad the bill?

thanks for any help