Morning All, Wired in a USB charging socket and hard wired in my dash cam using 'add a fuse' they are both working fine - impressed myself ! however haha since these have been fitted my stereo, heater fan and reverse light has decided it doesnt want to work - i have checked all the fuses under steering wheel all are intact - Add a fuse has gone into AC spare fuse and ABS spare fuse as i have neither fitted. I have tried by removing these and still no joy - is there some kind of common fuse for these ?
Stereo (aftermarket) has yellow wire still live yet the red has no power, fuse in back of stereo is still good.