New pioneer 6 HU's

[adirevolvo 0]

so I have a 9300 and a 660 as of today, and i went to go plug in the new 660 to make sure everything was good and the plug was diff from the 9300 which pissed me off. It was basicly the same but the 660 one was a tad larger and i didnt feel like hooking up a new harness just to test the new hu. anyone know if the 4 or 5 series are the same as the new 6? thanks! -aaron

[02BlackOnBlackSS 1]

Not likely. They usually change every year. Just suck it up and take the 10 minutes change a few wires.