Can I put a subwoofer in my 540 without replacing the facotry radio?

I want to put a small 100-150 watt sub in my 540. But I dont want to replace the factory radio. Can I do this?

Thanks

Check out:
www.unofficialbmw.com/e39/stereo/e39_dsp_posts.html

This will overload you with a lot of excellant up-grade material!

And,,, it isn't as difficult as some would make you believe.

Norm Matzen :smokin:

Sorry, I skipped an entry in the web address above. It should be:
www.unofficialbmw.com/e39/stereo/e39_dsp_stereo_posts.html

Norm