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1999 Corsa Radio Prob

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fatgaz | 18:16 Tue 06th Apr 2021 | Motoring
5 Answers
Hi peeps, my daughter had her boyfriend install a new radio in her 1999 corsa, no probs fitting it using proper wiring connectors, but now when she turns the radio on the info panel with with clock and date dims right down and when she turns the radio off the info panel comes back on, any ideas peeps any help would be most welcome, thanking you guys in advance for any replies
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He might have the illumination wire in the loom misplaced.
Question Author
Hi Dougless, dont know about this illumination wire as he said he just used the wiring adapter to connect the radio to the wiring plug in the car, sounds like a garage job then, ty for the reply
Wow – installing the new radio must have doubled the value of the car.
Question Author
hi peeps, had a thought about this radio/info panel thing, looked up the fuse layout for the car and there are 2 fuses one is audio only and the other is a multi component one including the radio and info panel, now could it be that this new radio is trying to draw more power than the fuse will allow and in doing so dims the info panel every time the radio is turned on, the audio only is a 10 amp and the multi component one is a 20 amp fuse, any thoughts on this would be most welcome
Drawing too much current through an automotive fuse will cause the fuse to operate, not a temporary drop in voltage. A 10A fuse on a 12V circuit will allow a power draw of well over 100W before the rating is exceeded.

It is possible that there is an excessive resistance somewhere in the supply line (e.g. poor earth/chassis connection) such that when more current is drawn the voltage drops; it could be that the radio is faulty.

Although a pain, if you know which are the +12V and 0V supply wires, you could remove the radio and make these connections to the radio and see if the problem still exists.

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