i have also researched this,ron francis is and was mopar friendly,,all the after market wiring harneses are GM color coded,,ron francis has all the mopar diagrams for how ever you want to run your ignition or charging system, painless also has diagrams,but they only come with there biggest system,but are available from them via email or a fax,,ron francis add on parts are cheaper then the painless prices,,altho some have used EZ wire kits in basic hot rods with normal things that a factory car came with ,,,no windows,no a/c etc,,.,,im going wit ha ron francis kit,,just got the catolog