First off, I drive a 2001 Pontiac Grand Prix GTP Supercharged.
I recently installed a Sony Xplod amplifier (1100W Max) and two Sony Xplore 12" Subwoofers. I installed these on a stock radio using a line level converter (hi-lo converter, etc.) to splice into the positive and negative speaker wires in the rear deck of the car. I ran the power wire to the battery, grounded the amplifier to a metal nut and bolt on the frame of the rear speaker deck and finally ran the remote wire to the fuse panel and used an add-a-circuit to tap into the Radio fuse so that the amplifier will only turn on when the radio is on. I do not run my radio when the car is not running and it is not a very powerful amplifier or subwoofers for that matter.
I started getting weird problems after doing this (my car was behaving just fine before this). Everything runs fine until I try to turn the air/heat on. When flipping the air/heat on my Boost Gauge Display will turn off completely, the air/heat will not work, and my daytime running lights will turn off and then proceed to turn off and on over and over again but very slowly. My air will go on when I crank it up to speed 5 but everything else will stay off.
I also have three other things wired into my fuse panel (if it is important to solving this issue), they are small 12v accessories, two sets off interior led tubes, and an fm transmitter. These all have switches and are turned off when the car is off.
I suspect either a wiring issue or battery/alternator issue. If anybody has ever had this issue after installing an amplifier, please help!! Looking for anything that will help!
