How to connect front door speakers?

Hello everyone,

I was able to install a new android radio unit with everything working except for the front door speakers. I do have them in my door so they should work. By removing the door panel l was able to see that l had to look for a pink and purple wire, you can see in the picture l found the connector with the matching wires. It was plugged into the blue connector you see on the left. (I unplugged it to get a better look). When connected corrrectly is that the way the door speakers should work? I can't see how the connection is supposed to be connected to the radio
Or, do l need a separate wiring 'bit' to connect the white plug directly into the back of the radio unit? Any help much appreciated!

Edit.. when the white/blue plugs are connected the tweeters on top of the dash work but the speakers in the door (still) won't