word of caution.
(1)during cold mornings my front left speaker would initially not turn on at low volume. But when I increased the volume a bit, it would kick in and work fine for the rest of the day.
(2)There was also a slight buzz sound at certain frequency and volume coming from the same front left speaker throughout the day.
(3)Lastly, the same speaker would cut out when I went over certain high volume (45-50 volume point) and no sound came from it until I lowered the radio volume below 40.
so are these are related or separate issues?
these are the steps I took to diagnose the problem
1. Switched the Hi-Low converter RCA outputs (Right >< Left) in the front speakers going to the Amp, resulting in the (2) and (3) following the switch making the front right speaker now the issue. so it was not a blown speaker.
2. Just in case, switched the amp output from Left to Right side in the front. The issues followed to the right side, so something before the speakers/crossover to the front was the root cause. Hi-Low converter, Amp, or the radio.
3. Bypassed my Hi-Low converter, amp. just went from Radio to front speakers/crossovers. none of the issues showed up. So its not the radio nor the crossovers or front speakers.
4. Only thing left was the Hi-Low converter in the front. Called up PAC tech support and they agreed it must be defective and to replace it.
5. Just for the heck of it, I took the rear Hi-low converter, which wasnt having any issues and replaced the front Hi-low converter since it appeared to be defective anyways. Guess what, same issues were showing up. Okay... I am out of ideas.
Front Speakers - must be fine
front crossover - must be fine
amp - must be fine
hi-low converter - must be fine
radio - must be fine
Took a step back and thought about it, looked at my setup and only one component was not tested but really shouldnt be affecting anything.
The PAC TR-4 remote amp turn on module was hooked up to the front left speaker (+) lead. Could this be the culprit? I removed the wire connecting to the (+) speaker lead and connected it to a constant 12V source.
The issue went away. switched the rca outputs on the front hi-low converter and no issues . Try to verify, reconnected the TR-4 back to front left (+) speaker lead and the problem came back. So its not suppose to work this way, but its somehow conflicting with the amp/crossover/speaker.
In the end, I just hooked up a remote wire to the inside fuse box to Front 12V 15A outlet as it turns on during Acc and Running then turns off went vehicle is turned off.
Problem solved.
Just took 2 days and about 4 hours of actual work on the car.
Hope this helps if anyone experiences the same issue.