I got a IS200 sport, and I wanted to get rid of the stock radio for a mp3 one.
So I simply removed that stock amp and connected all the wires up to the head unit, except for those 4 wires left,the tweeters.
So I got the battery 12v, acc, ground, and the speakers connected to the player now.
When I try to turn it on, it only stays on for like 5secs. All fuses are okay.
I have a JVC KD-F421 if that changes anything. And the player is brandnew and works fine in our other car.
So bottomline, what is it that I´m missing?