Every installer I've ever known that worked for a car stereo shop did work on the side to supplement their income.Pull an installer to the side and ask him to help you out.
Most installers get bonuses anyway and plus Im sure if its a small shop they wouldnt want to lose business. Because if the shop isnt making enough money they would lose their job. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif