It keeps blowing due to it grounding out. Where are you connecting that 12V constant wire to? Yellow is for constant 12 volts. Reason for the fuse.
Red is for switched 12 volts. Meaning, when you turn the key to accessory, you get 12volts.
Find a good constant and then hook your yellow 12V+ to it. Can find it on the steering column, or if you have to , run a wire thru a grommet on the fire wall and hook it directly to the battery. Make sure you fuse it at the battery with a larger fuse holder.
Just get a volt meter or a test light to find these wires. Also, go the factory manual. It should tell you there.
RTFM (read the f'ing manual)
Doh.. stupid me. I just went back and read whats happening to your radio. Is it new? Sounds like a POS to me. Umm.. there should be 4 channels on that cd player. You should be using them. What i mean by that is.. green, purple, silver, white.
White is left front
Silver is right front
Green is left rear
Purple is right rear.
Ones with the stripes are negative wires.
Are you using a wire harness? You know, to plug into factory stereo wire harness? It's merely a plug and play ordeal if you are.
Good luck! :cheers: