Vito 109 CDI Aftermarket Radio Problem

[Longshaw]

Hi all looking for some help,

The factory radio volume knob is ver temperamental. (But does work)

I have brought a new aftermarket radio and carrier assuming this would be a 5minute swap replacing old with new.

However the new radio simply does not power up. (Not broken unit)

Any ideas help I could get?
Thanks in advance, Adam


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[Longshaw]

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[Kev555]

I take it you have checked the obvious that the fuse hasn't blown during changeover? I know but its happened to me a few times. I haven't replaced my Vito unit yet so I wouldn't know of obvious complications changing the Vito head unit. Some Vito owners will be along to help that are familiar with the problem hopefully shortly Longshaw

 

[Longshaw]

I take it you have checked the obvious that the fuse hasn't blown during changeover? I know but its happened to me a few times. I haven't replaced my Vito unit yet so I wouldn't know of obvious complications changing the Vito head unit. Some Vito owners will be along to help that are familiar with the problem hopefully shortly Longshaw

Thanks Kev, yes I have put the old/OEM unit back in and again works fine. Don’t think it would be a fuse


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[Kev555]

Pity nobody had a solution for you so far Longshaw

 

[Kev555]

From what ive gathered on the Net it seems with later mercs dont have a switched live at the iso block at the rear of the radio so you have to supply one from the cigarette lighter socket or get a can interface

https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwjz-c-ivuXuAhU1olwKHZS9CGwQFjAAegQICBAC&url=https%3A%2F%2Fincartec.co.uk%2Fproduct%2Fmercedes-audio-5-radio-cable-20-192-ign&usg=AOvVaw0jZhxgUah0IEdGn7x92zAz

You possibly may also need this to use steering wheel controls

CAN-BUS Steering Wheel Remote Control Adapter Mercedes A Class/B Class/C Class/R Class/CLK/SLK/Sprinter/Vito/Viano for KENWOOD CAR STEREOS: Amazon.co.uk: Electronics & Photo

Free delivery and returns on eligible orders. Buy CAN-BUS Steering Wheel Remote Control Adapter Mercedes A Class/B Class/C Class/R Class/CLK/SLK/Sprinter/Vito/Viano for KENWOOD CAR STEREOS at Amazon UK.

www.amazon.co.uk

 

[sonic]

Test the radio on a separate 12v source, so you know it works. Then you will have to meter the block connector for power.

 

[Longshaw]

Thanks all for the guidance!

I new 12v ignition only spliced into the iso block worked for me:

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