UPDATE:
well velko came over today, as i had previously offered the use of my garage, tools, and my experience. Fisrt thing, we took out the rear seats to examine the grounding point for the amplifier and the woox powered sub. Velko told me he specifically told the installer to make sure the ground point was to bare metal on the vehicles chassis, so what did we discover? The grounding point was of course on a painted surface (about three layers of primer underneath it too). So we sanded it down, and re-ground the amps. Took it out for a test drive, there was a minor improvement with the alternator whine situation.
Then we examined the headunit ground, which looked fine, it was connected to the proper wires on the factory harness which went back to the battery. He mentioned he was having an issue with AM reception, which I wasnt sure how to diagnose. So next step was to examine the RCA interconnects. There were two "mas-power brand" noise filters, installed in the wrong direction. Additionally, the RCA's had a third wire which appeared to be a ground connection, but I did not see where we were to connect these on the amp or the headunit, I was thinking it was a negative ground, or something to do with balanced RCAs, I really didnt know for sure, or whether or not they would help. I guess the installer was too lazy to use any of the proper adapters to hook it up correctly...so we removed the filters, and hooked them up in the correct position, but not at the end near the amp, the end near the h/u. didnt really help much except the whine was higher pitched. So, we skimmed through Alpine's manual which said that noise filters should be installed on the end nearest the power amplifier, and not the headunit. Since I didnt have the proper RCA connection adapters we just decided to not use the filters at all.
So after a few drives, and some tweaking the noise problem was slightly suppressed, but still evident.
The next step of course is to examine the vehicles electrical system, since the alternator whine was probably coming from a poor ground in the electrical system and not the audio system. At this point Velko had to leave, so I guess we will try some other time later on to get rid of the alternator whine.
Basically we both tried out best within the time we had, but the issue is still evident. If anyone has any other suggestions that might help please let us know. We racked our brains trying to figure it out!!!
Bottom line, dont go to a shop without checking them out beforehand with the Better Business Bureau to see if they have any reports filed against them, get as much information as you can about the products and techniques that they use. Ask to view other customer's installs, as most reputable shops keep a photo album of them, talk to as many people as you can that have had work dont at that shop.
I reccomended that since Velko did not wish to directly intervene with the shop, that he get the BBB after them. With everyone's help and insight hopefully we can continue to prevent people being taken advantage of by shops like these!
