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Hello, i have installed my JVC KD-R311 to a rover ZR i can find the stations but once i turn the car off all my bass setting change back to normal and i also can not set the radio to come onto a pre-set channel. Please could you help me. Many thanks

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If you set the radio pre-sets to stations and then turn off, when you turn on again are the pre-sets lost ?

If so then there is a wire that constantly keeps 12v into the radio to power the chip that stores the pre-sets, the EQ settings. Check from the manual as to what colour it is on your system, (they are usually yellow) and find a point where there is 12 Volts present even when the ignition is turned off (often easily found on the lighting switch or the ciggy lighter socket - a simple test meter is handy here) and connect the wire to that. Should solve your problem :)

John in the N.W. UK

Posted on May 26, 2011

  • John May 26, 2011

    p.s. When I said above "turn off" - to clarify I mean turn the key to off,not the radio !


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Make sure red wire goes to an auxilliary power and yellow goes to battery.

Posted on May 26, 2011

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