OK, so I tried to install a new touch screen deck in my car, and it wouldn't work, so im after checking and re-checking the wiring, but now the gauges are jumping when the key is turned on ( like a bad ground) but didn't do this before trying to install this, and my Power locks no longer work either, which makes me belive blown fuse? Also for the stereo the wire named : BRAKE is usually grounded so you dont get the warning correct? Thanks for any help you guys can provide!