Blowing fuses

[michael_99]

A while ago, my son decided that MY car needed a new radio/cd player.So he bought a new one and installed it himself, knowing very little about such thing.After that, the it started to blow the fuse on the right side parking light and everything else on the same line, including instrument cluster illumination, so
when driving at night, no light to see how fast I'm going.What could have gone
wrong here.
Car is a 318i 86 model.
Also, what is a "check control" and where is it placed.
Any help please.
Michael_99

[german-speed-demon]

probably crossed the Continuous Power wire(Memory) and the A/C wire(power when car is on). Or he might have tapped into an existing wire bundle in order to locate a hot source.

Also, if he combined the 12V continuous and the hot wire, it could backfeed and blow fuse, also wreak absolute havoc with electrical systems such as fuel gauges, electronic speedos, ect.

[Starmavin]

Remove the radio, once out see if it still does it. If not, it could be an unrelated coincidence, if it does stop blowing the fuse, good chance the radio illumination wire is shorted to ground, then we'll go from there.