possible stock stereo issue?

[BW_Rx7]

anyone know of any malfunctions with the stock stereo?

i can turn it on, the antenna comes up but no stations play. the tape player works but most of the time not very loud. played normal for a couple minutes, then the sound diminished to barely being heard, the speakers cracked when i turned it up and down.
on the way home from a 2 hour trip where the car ran fine, no alt warning light~ we tried to listen to a tape. it played normal for a minute then the sound went away but i forgot to shut it off and kept driving. when we stopped for petro, she wouldn't start back. hardly enough juice to power the dash lights. got a jump and drove home.

the battery was too hot to touch and is trashed=won't take a charge. it's an optima. summit sent out a replacement under the warranty, but I don't want to ruin another optima battery. i put a regular battery in the car and drove it (without turning stereo on) no problems, & it's right on by the multimeter.

anyone heard or know of issues with the factory radios causing electrical problems? any ideas?

Thanks in advance.. I'm totally ignorant on this.

[3tegStrong]

anyone know of any malfunctions with the stock stereo?

i can turn it on, the antenna comes up but no stations play. the tape player works but most of the time not very loud. played normal for a couple minutes, then the sound diminished to barely being heard, the speakers cracked when i turned it up and down.
on the way home from a 2 hour trip where the car ran fine, no alt warning light~ we tried to listen to a tape. it played normal for a minute then the sound went away but i forgot to shut it off and kept driving. when we stopped for petro, she wouldn't start back. hardly enough juice to power the dash lights. got a jump and drove home.

the battery was too hot to touch and is trashed=won't take a charge. it's an optima. summit sent out a replacement under the warranty, but I don't want to ruin another optima battery. i put a regular battery in the car and drove it (without turning stereo on) no problems, & it's right on by the multimeter.

anyone heard or know of issues with the factory radios causing electrical problems? any ideas?

Thanks in advance.. I'm totally ignorant on this.