Performance indicator vacuum line

Here's something to consider... Once the panel is installed you absolutely will not get a hand to the back of this instrument. If you should forget to connect that vacuum line, bad day. Not only did I purchase new vacuum tubing for the instrument install but I also bought white heat shrink tubing ( AMAZON ) and a white plastic butt connector ( any part store ). The heat shrink sleeves the black rubber tubing giving it an extra layer of protection and also makes it very easily seen. The plastic butt connector is approx' 6 inches away from the instrument nipple. We can get a hand to it.