Here's the one for a '70 Charger ( Rallye dash as a Roadrunner has ).

http://www.mymopar.com/downloads/1970/70ChargerB.JPG

Main index for complete schematics for various years and models.

http://www.mymopar.com/index.php?pid=27

Troy
Houston Mopar Connection Club
'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi)
'69 Charger 500 440 - 4speed - 3.54 Dana
'70 Road Runner 383 - 4speed - a/c (now with 440)