tach install
 

I am going to install a 3.5 in. autometer tach into my 82 today and I was wondering where the best place to hook up the 12 volt wire (basically key activated) and the light panel wire. I know that there are some extra slots in the fuse block and was wondering if I could tap into those? My other choice is to search for the right wire for inst. and tap it. Any suggestions?