Radio Power-off Delay

  • Controls a vehicle's radio power line to keep the radio active after the key is turned off.  Could be wired to control all accessory power
  • Monitors the dome light circuit and shuts the radio off when a door is opened.  If a door is not opened within 15 minutes, the radio is shut off to preserve battery power.
  • Includes an internal self-resetting 7 amp fuse.  By using an external high amperage relay, this module can be wired to control all accessory power, not just the radio.
  • For 12V vehicles.  

$63.99   PN 12005 (GM from the 50's, 60's, and 70's; Mopar through '73)

12005 Installation.PDF          Buy Now

$63.99   PN 12007 (FoMoCo from 50's, 60's, 70's, and 80's)

12007 Installation.PDF          Buy Now


Modern cars have so many conveniences.  Some of them you don’t even realize you want, but once you experience it, you think “that’s cool!”  This device falls in that category.

When my wife got her new car many years ago, the radio would continue to play after the key was turned off.  And the electric windows would operate, too.  In fact, all accessory power was active for 15 minutes after “key-off” or until a door was opened.  That’s cool.  How do you explain how nice this is to someone?  They just don’t get it until they have experienced it.

Of course, if it was cool, I had to have it in all my cars.  Now you can add this feature to your car.

With this Radio Power-Off Delay, your radio continues to operate after key-off – just like many modern luxury cars.  After turning the key to off, this unit will keep the radio power active for 15 minutes or until a door is opened. This allows you to continue listening to the radio without leaving the engine idling or the electric fan running. And you're not limited to just the radio; this device could be wired to a relay to control all accessory power so you still have control of the power windows after the key is off.  Handles up to 7.5 amps directly.  Internal circuit breaker prevents overloading.  Higher currents can be controlled by wiring this unit to control an external relay.

Two styles are available, depending on how the dome light is activated.  12005 is for vehicles where the door switch supplies a ground connection (most older cars including GMs from the ‘60s).  Part number 12007 is for vehicles where the door switch supplies a 12v connection (many newer cars with remote entry and ‘60s era Mustangs).  If you are not sure which one you need, use a voltmeter to test the voltage on the dome light when the dome light is off.  If the voltmeter shows battery voltage, then the door switch supplies the ground connection (so you need pn 12005).  If, instead, the voltmeter shows 0V, the door switch supplies the 12v connection (so you need pn 12007).  

$63.99   PN 12005 (GM from the 50's, 60's, and 70's; Mopar through '73)

12005 Installation.PDF


$63.99   PN 12007 (FoMoCo from 50's, 60's, 70's, and 80's)

12007 Installation.PDF



Tech Specs:

2”x1.5”x1” plastic enclosure with mounting tabs.

Internal 7.5A resettable fuse, higher currents can be controlled by wiring this unit to control a second relay. 

Fully potted

3 foot, 18 gauge leads

Microprocessor controlled

Simple installation

Made in the USA

© Revolution Electronics 2017     sales@RevolutionElectronics.com