Need some advice, especially from people with nokya wire harness. I recently installed the harness and now, whenever i drive and hit around 3k rpm my brake light and batt. light on my gauges light up .Also when i have my stereo up the amp cuts on and off, as if im not getting enough power. Could the harness be pulling to much juice?
Do i just need to beef up the ground? Any suggestions????

 

im not sure what it is, but its happening to my 95 GLE as well, we tried replacing the battery but that didnt work, does anyone know what this problem is?