The 6514's are much easier to find, and the wires can be easily switched for the polarity issue.So, I'm a little confused (and paranoid since I've already swapped speakers and buttoned things up), are the correct connectors for the front and rear doors of the 9 speaker system the metra 71-050's or the metra 72-6514's? I understand they are the same just with reversed polarity but which should I be using? I'm in the US, not UK.
I guess I should rephrase my question.......The 6514's are much easier to find, and the wires can be easily switched for the polarity issue.
Do you reverse the wires on the front and rear door speakers only or the two dash speakers as well?If you look at the 6514, there are small plastic tabs above the conductors that hold the wires in place:
Use a thin metal tool to lift the tab and pull out the wire. I use this:
Reverse the wires and snap them back in.
On your factory wiring, the wire with the black stripe is your negative. Just match it with the black wire on your adapter and you are good to go.