So I did an install and it is finally tuned and I got rid of all the alternator noise. I am still picking up a high pitch hiss in the left tweeter. After unhooking everyhting it seems to be picking up the noise between the cross over and the tweeter. There is the fuse box there. The frequency changes with the AC on or the Brakes applied. Nothing with throttle. All the other speakers are clean. I can unhook this tweeter and get sweet silence. Anyone know whats up there making the noise? How best to isolate from it. Any experiences with this would be great.

Oh and I have twisted pair from the amp to the crossover but used the eclipse wires that came with the speakers from crossover through dash. I am out of twisted pair so I am considering buying some of that. I am also considering heading to the local boat shop and buying shielded wire. but I have to break that stupid airbag clip again to do this so I would like to explore all considerations before I break that clip and have to go to the dealer to get a new one.

Run some Coax to the tweeter. Ground the ends. The noise will be gone.

Dom

I ran some twisted pair and it helped a ton. thanks for the idea. I am still fighting a bit more noise in the entire system. I didn't really notice it as the one noise was more noticable and demanding my attention. Going to try and add one of those voltage stabilizers. From what I read they are caps you wire accross the battery. Good at cleaning a little noise but not much else. for 10 bucks its worth a try.