cd player installation

[tds012]

i just purchased an aftermarket cdplayer (alpine) for my 93 325i. i have installed MANY cd players before, but never in a bmw. i installed it using a harness. the radio, which wont work because i do not have an adaptor, makes noise, however the cd player reads the cd's and plays them, yet there is no audio at all. i heard that my car has an amp in it...does this have anything to do with it? i do not see why it would, because my cd player has an internal amp. also, i have a 6 disc changer....do i have to do something with this? i do not plan on using it because it is missing the magazine....any ideas....like i said i am very familiar with aduio installations, but new to bmw....so PLEASE, help me out!

ok, i found my amp...so i need to wire the amp in my trunk to the remote wire for my head unit. correct? im not sure which wire is the amp wire....

 

[Kirby]

The BMW factory amp uses a different line level than "standard" amps, and may not work correctly with your head unit. I bypassed the factory amp, installed crossovers, and wired my head unit directly to the speakers.

 

[tds012]

i figured it out...the blue factory wire is the amp wire. i connected it to my remote wire and now it works. i should have caught taht earlier...i was in a hurry and it was about 100 degrees out though. glad to have it working