Mastertech from 1993 for 12 Valve Cummins
Instructions for front and back use, and trouble shooting common problems.
this took a while..But i got the system back up and Running, So Now All I Have to do is Order Some 6x9s and some Mid Rangers and hoook them up as of now my tweetrs and lights not hooked up. im shooting for a cleaners / more appearing Setup! Enjoy!