WTF I started my truck, and started to drive down my street, after about 100 feet the engine cut out and the following warning lights came on brake failure abs failure air bag light security light. The truck says it has low fuel. None of the lights light up on the transfer case selector. The light does not light up for the transmissions gear selection. Turning the key has the same effect as it would when in gear. I recently had an amp, sub woofer, and head unit installed, my on star has not worked since the sub and amp were put in and i was told putting in the head unit will fix this since the the sub running off speaker level disabled my onstar. Also the weather is currently -31 celcius. It is a completely stock 08 crew cab canyon except the stealth box, slash amp, and alpine deck. I am thinking the audio shop that installed the components to my equipment screwed this up any ideas?