Alright im having some trouble starting my car. The car is a 95 z28. When I get in the car (without inserting the key) everything works. I can toggle lights and everything but as soon as I insert the key to start the car everything cuts off. No power, no radio, no lights, no gauges, and I cant start the car. However if I sit in the drivers seat and rock back and forth a bit the electronics will flick on and off like 6 times and then finally come on and stay on. At this point I can start the car perfectly and It will drive fine. Ive check the battery connections, the alternator connections and the starter and ignition fuses. I also check under the steering wheel to check for any obvious ground issues. Im really at a loss here so any help would be appreciated guys. Thank you!

 

could be vats or a aftermarket security system.
http://shbox.com/1/pass_key.html
http://shbox.com/1/4th_gen_tech2.html#pass_key
http://shbox.com/1/vats_bypass.jpg
https://camaroforums.com/forum/lt1-l...37/#post579761

 

If it's the VATS causing this, the "security" light in the dash will be lit. Is it?

 

Alright turns out it wasnt the security system like I thought, I poked around the engine bay some more this morning and saw that the battery ground next to the stock terminal box was corroded. So I replaced that and all is fine now!