Alright so I have a little problem with my stereo install. I've installed stereos many times before and had to add a wire to the stock amp power wire to give it power for the speakers to produce sound. Not sure if that's my problem or not. But I have the 06 gxp with the stock touchscreen with navigation. I'm removing that and putting in a pioneer touchscreen. Got a wiring harness from good ol walmart. Wasn't worried about losing chimes and all that crap. My only problem is no sound. Anybody have a similar issue? Couldn't seem to find anything. Thank u for your time.