Please dont move, i just need a few answers and audio froum get no traffic...lol...

Stereo Problem...(rep 4 answers)
I drive a 95 ex civic coupe, and it has the factory tape player. Last night i got a headunit that comes stock in a 99 integra. The harnesses are the same and everything, and the new one is a cd player. When i plug the new one in, it will play sound for a few minutes and the sound will stop. The headunit will still be on, but the sound will just cut out. Then, you unlpug the harness, and plug it back iin, it plays again.
Why is it doing that?
I really want the oem look, so please help me out...