I just converted my 69 charger from a 2 speed to a 3 speed wiper motor, the actual underhood wiring harness is part of the 3 speed wiper motor (it doesn't unplug from the wiper motor itself) that is "Hard wired" into the connector on the firewall. The 2 speed wiper motor one end of the harness is "Hard wired" into the connector on the firewall and the other end unplugs from the wiper motor. You basically de-pin the 2 speed harness from the connector on the firewall and insert the pins from the 3 speed motor, the wire colors are the same between the both motors on the wiring at least for 69 B bodies. The rest of the harness from the firewall to the wiper switch is exactly the same and of course you need to have a 3 speed wiper switch installed or nothing works right.Does anyone have ? or a picture of what a 69 b body 3 speed wiper harness looks like? Would be great to see what I am looking for. Thanks