Thanks for the replies. I was told my problem is the yellow and red wires are crossed. The constant wire on the Alpine is yellow, whereas its red on the Metra harness. I have it connected yellow to yellow/ red to red.
Thanks again
Porsche Boxster. I used the Metra 70-1787 harness from Circuit...
I installed an Alpine 9886. I cannot get the settings to save. If I set the time/date, or adjust bass, treble settings, etc, it works fine until I pull the key from the ignition. When I start the unit again all the settings change back to default.