I just purchased a 91 W350 CTD, and am realy happy wiht it except for one thing. The previous owner mounted two spotlights on the roof and several Aux. lights on it and has realy hacked up the wiring to do it. i am trying to repair the damage and havent been able to find a realy clear wiring diagram. Any suggestions? ( I am a real NOVICE at this..)

 

The earlier Chrysler schematics were really crappy to say the least. However, there service manuals have all the schematics for the certain make, and year model of truck. I ordered mine through the dealer for about 70 bucks. However http://www.techauthority.com did have the manuals for sale. But, they only list back 10 years. You might shoot them an email to see if they are still available.