ANYWHERE !!!
The cable is a STANDARD morse or teleflex 33 C cable. All you need to know is the length. Mack boring does not handle controls, Edson will charge a whole lot. Go to your friendly local marine store, West marine if you must or anywhere else you can find.There are varying levels of quality. The higher the level and the more you pay, the less resistance there will be in the cable and the sharper the bend you can put into the cable. The fun part, if you have a Yacht Specialties pedestal will be fastening the cable housing to the connection point inside the pedestal tube, about 10 inches from the top. I've done it twice and I couldn't begin to tell you how to do it but I do remember it required a lot of swearing.