Originally Posted by Wrathernaut
Connect the red wire going to the radio to the blue and white wire going to the antenna amplifier (and the blue wire going to the factory amplifier if you have the bose amplifier).
Thanks for all your help
Well I have determined that the Nissan Versa antenna basically sucks for a few reasons.
Yes as was pointed out in the various posts either the red acc. wire or the blue and white amp wire coming out of the back of the head unit being connected to the blue wire on the antenna adapter powers up the antenna so it works. Somewhat anyway.
However wiggling around the antenna adapter connector plug to the original car plug caused intermittent FM reception success. AM remained non existent. This connector if it would have been good would not have caused me so much trouble.
I decided to bypass the likely defective plug of the antenna adapter and hook up direct. (original plug must be good since original radio worked) This revealed that the car wire is not a wire at all but a rather cheap coaxial cable.
The coaxial cable once cut is almost impossible to reconnect or attach a connector to it because the center wire is a cheap and small stranded wire and not solid. This would cause a man with less experience and training at rescuing hopeless situations to give up.
To rescue the situation I connected the cut wire of the antenna adapter to the center core of the original coaxial cable using a sewing pin.
I crimped a terminal female end on the adapter wire and a male terminal end on a sewing pin. I then shoved the sewing pin down the center of the coaxial cable. The insulation sheath of the coax must not touch the center wire/pin. I strengthened the joint by taping it all to a pop sickle stick.
This has given good but recognizably flawed reception for FM and no AM. I have determined that the antenna is although maybe great for the original head unit but it is not acceptable for my 7 year old Pioneer.
I am going to get a normal antenna that has a male plug in at the end of the antenna cable and try it. I expect to have stellar performance. Then I will just have to work out a permanent normal antenna and bypass/abandon that coaxial thing that I conclude is my problem. I would be rather teed off about the screwed up coaxial connection/discovery except that I figure that even a perfect connection would not result in AM reception. I think a normal antenna is needed. Or at least one that has the male plug in fitting factory installed. For all I know the "normal antenna" is coaxial also. (or go back to using the original head unit)
I notice the 2010 Nissan Versa looks like it uses a normal antenna. Maybe they agree with me.
If you are thinking of cutting the vehicle wire to bypass a suspect plug ----- don't it is coaxial.
As of now good but not great FM, no AM and of course the CD works.