Just ordered the Pro-Comp 8,000 rpm tach w/shiftlight from AutoMeter. Also needed to order their tach adapter. Just wonderin' how hard of an install it is, and if it is something I can do. I don't mind paying a shop to do it, I want to make sure it is installed properly and works correctly. I do most of my minor bolt-on installs myself, but this seems like it might be a little more involved. Thanx in advance.