My jensen VM9224BT deck will not turn on at all. The fuses are all good and I have the plug with with the power, ground and ignition all wired up but it still does nothing. Tried bench testing it by touching the ignition and power wires to the poisitive terminal of a fully charged battery and the ground to the negative and it still won't turn on. Brought it back to where I bought it and they turned it on when they bench tested it no problem. Any ideas of what I could be doing wrong?

SOURCE: Amp will not turn off and the Remote wire is correct.

check pwm chip ,may need replacing

SOURCE: 1996 olds cutlass supreme won't crank

You can jump across the celonoid on the starter. If the engine turns over then your problem is either the celonoid or the starter switch.

SOURCE: 1006 olds cutlass supreme won't crank

try taking a power wire from the battery positive and getting it on the starter terminal and seeing if the starter turns over if it does it could be a fusible link that runs between the starter terminal and the relay

SOURCE: 1991 Nissan 240SX starter will not turn!

If you've applied 12VDC to the solenoid and it does nothing, not even click, then the solenoid is toast!

SOURCE: key switch on, push ignition button & nothing happens

Check your ground wire to the frame. Clean and refasten....and find a new mechanic, no excuse for inferior workmanship...Sure sound like a ground problem !......Good Luck to you friend....Tim