GM-GMC: 84 GMC Diesel, gmc diesel, power int

Question
I have a 84 GMC 6.2 Diesel and when turning the key I have no power at all even while jumping it.No lights, Radio,etc. Is there a fuseable link?

Answer
if you have no power int the dash and lights outside, really check battery   if you have no lights while trying to crank...check links at starter or starter may be a problem check soliniod wire at starter for 12 volts while holding the key in the start position