Hey guys, my first post on here. So long story short I own an R33 Skyline Series 1 RB25DE auto from 1993, and its completely stock. I went down to the shops and the car was driving fine, started fine etc.. but when leaving the shops, I did what I normally do by putting the key in the ignition, turning it to the "ON" part, clicking the immobiliser button in, and the dash lights/ radio all lit up as usual for a second or two, and just before i turned the key to start the engine the dash lights/ radio lights just shut off. I had my mechanic whos a family friend come out to look at it, as I suspected it was maybe a flat battery, but we were getting 12.57V to the battery in the boot, we tried to jump start but to no avail. Something else that was odd was to the terminals in the engine bay where you can jump start from also, we were getting no voltage reading, but he said it may have been because the terminals were so dirty. He seemed to think it could be a fuse issue or immobilser but he didn't have the tools to help/ didnt wanna mess with the immobilser or fuses. My cars stranded at the local shops for 48hrs until I can claim service from RAC as I only just signed up for it tonight. Has anyone had a similar issue or maybe could point me in the right direction as to what is wrong with it? Also theres a little red light that will flash 24/7 next to the ignition and when the key first gets put in (without turning at all) theres a beeping sound which I suspect is the alarm, but even that red light wont flash at all. I hope this isn't the end of the road for my car any help would be greatly appreciated, thanks guys