'05 V6 Manual - no power to starter
 

Background - son bought a "rebuilt" titled '05 while I was out of town on business - his money.... He took it to his cousin's house this weekend to install an amp and sub's in trunk. After they disconnected the battery to wire in the amp, the car won't start.


We push started it - so it runs - all systems getting power. But when you turn the key to start the car - nothing - not even a click like the battery is low, not ATS lights, nadda.... we don't have a user manual, and I can tell that in the "rebuild" they did some interesting things - horn's aren't hooked up, it is using a Clifford Alarm tweeter as the horn, and none of the O2 sensors were put into the exhaust past the exhaust manifolds (if there were any on the '05's.)
He's really disappointed - any thoughts on what's limiting power to the Starter relay?
Thanks - No Start - Seattle :-)