Coujer

So I installed a new head unit last night with the Metra 70-1787 connected the yellow/green/blue in the red harness then got the black harness with the black connector. There is a orange wire for dimming that just not connected to anything. I have the blue wire hooked up to power antenna. I had to splice the av cable of green and purple to connect to the wires from the deck but I noticed that I can;t connect the green/black and purple/black to anything which are negatives. I'm ordering the 70-1784 see if that helps....

It worked fine yesterday bug got in the car this morning and wouldn't start!!! I also noticed the ground wire on the left side was connected to a piece of plastic trim but the plastic trim piece was loose would that be an issue?

Thanks