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I need help! I missplaced my manuel for my mack truck and I need to set the time on the mack am/fm stereo, can any on help? I appriciate any ideas or suggestions

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Press and hold #3 & #6 buttons for 3 seconds at the same time. The radio will beep and a colon ( : ) will start flashing. Use the + & - buttons to adjust the time. Press the power button to exit...radio will beep once again.

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:clap: damn barry you're pretty smart. i couldn't have figured that out. i would have probably just put one of the old wind up alarm clocks on the dash :idunno:

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I cheated...I have the directions! LOL...but I do get alot of walkin customers that need this info. The Delphi/Mack stereo isn't too user friendly.

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I cheated...I have the directions! LOL...but I do get alot of walkin customers that need this info. The Delphi/Mack stereo isn't too user friendly.

Something else to remember on these Delphi/GM/Bose, etc. factory radios is that if you completely remove power from the vehicle, a "theft prevention device" sets a code into the radio rendering it useless until you pay a dealership $70.00 or so to reset it. To prevent this action, obtain, or purchase a "computer memory keep alive" item that plugs into the cigarette lighter to keep battery power applied to the memory circuits while you change the trucks batteries or whatever you would need to kill power in the truck for. This way you do not lose your radio presets either.

Rob

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