No guages and now no tailights. (be a hero and solve this!)

[tree18is]

i pulled the head unit out to re-do the memory wire and when i but it back in the little red batterly light was lit up real dim, and now the car has no guages, the motor runs and idols, but no guages, and when you put the blinker on its really fast.. like it has no ground thats what bmw's do.

so im asking for some help

conditions:Car startedno guagesthe ST turn signal fuse has no voltage.thats it everything else has it, even under the hood.

I took out the fuse box and there was some relays behind there. what are they? well thanks for any advice.and im coming from KA-T so im not totall newthanks again.

[Tech12]

You have a short =) Similar thing kept happening to me when I tried to "fix" the cigarr... erm.. accessory port on my center consul. Whatever circuit that line is on is the same one you are having a problem with, as I also had no rear lights and no gauge lights.

Best bet would probably be having a friend monitor that fuse while you pull you head unit and find your short. When he starts yelling about a signal, you'll be getting close