I can't find serial numbers on the radio

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What to do

The serial number will be on a sticker that is either on the sides or back of the radio. If your radio doesn't have a sticker on it then you'll have to install it and use a scan tool to retrieve it from the radio.

HELLO \*\*\*\*\*'T FIND SERIAL NUMBERS ON THE RADIO I CHECKED ALL OVER THEN WHAT I MUST DO I BOUGHT THE CAR WITHOUT MANUAL IT SECOND HAND CAR.ENGEN NUMBER BRE Audi A4.

If your radio doesn't have a sticker on it then you'll have to install it and use a scan tool to retrieve it from the radio.