Hello forum, I am looking to replace my speedometer in my boat due to the older one looking rough and the lens is kinda crummy looking. Can anyone tell me if this can be redone by easily replacing the old one with the new one. Can I use to old Pitot tubing from the old one? Do I need to remove the whole helm to replace the gauge or can i just remove the dash and do a quick exchange. I tried to you tube this but had no luck. Thanks guys !