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Radio memory not storing presets and time.
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texan1958
New User
| Posts: 3
| Joined: 09/09
Posted: 09/07/09
03:48 AM
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When I start my 69 Mustang, it draws down the power so much that I lose the memory that saves presets and time on my replica radio. The radio is hardwired to the battery. Is this due to a weaked battery or to a bad voltage regulator. Any suggestions?
T
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cushman350
Enthusiast
| Posts: 300
| Joined: 07/06
Posted: 09/09/09
01:59 PM
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Most electronic memory radios have two power wires. One orange or yellow wire that connects to a constant 12v source so memory is always powered, and the main power red wire connected to a switchable 12v power source (ACC) to disconnect power when the auto is off.
That being said, have your battery load tested for bad cell. Have alternator checked for proper output. At engine idle the voltage should be between 13.6 to 14.3 volts. With the vehicle not running and the car sitting over night the battery voltage should be between 12.5 and 12.8 volts. If corrosion is present, clean.
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texan1958
New User
| Posts: 3
| Joined: 09/09
Posted: 09/10/09
08:04 AM
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Thanks...it is an old battery. I will check it as I hardwird both hots to it and still had the problem....interesting that the engine start with no problem.
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jlg2002
Guru
| Posts: 863
| Joined: 03/08
Posted: 09/10/09
12:32 PM
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If you're dropping that much voltage on start, you have a battery or starter(cables too) problem. Make sure that the radio is really connected to 12v source and switched 12v source. You could also have a bad radio. jlg
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