Bypassing Amp - BMW Forum

CiscoKid · 03-10-2005, 09:27 AM

I have an aftermarket powered headunit, is there any way to bypass the factory amp without rewiring the entire car?

Can anyone post a wiring diagram also?

brien4787 · 03-10-2005, 09:29 AM

here you go

edit... oops...well that is the amp..buuuuut, not the diagram... let me look for it...

brien4787 · 03-10-2005, 09:31 AM

diagram... what is it that you are trying to do? bypass for speakers or what?

CiscoKid · 03-10-2005, 04:32 PM

yes... i want to bypass the amp entirely

brien4787 · 03-11-2005, 09:29 AM

I did it with my amp, well, i just bypassed by tweets, and kick panels... its not really hard to do, just a pain in the butt. PM JLLPHAN, he helped me a lot!

da_bull · 03-11-2005, 08:20 PM

Use that diagram and run 4 new strands of speaker wire from the radio to where the factory amp is now. The twisted set of wires are the pairs that go to each speaker (right front, left rear, etc.) This will bypass your factory amp and allow the radios power to run everything.

The nice thing about most BMW amps is that they power everything individually. In the future you might want to run your tweets off of a small amp, and the mids off of another amp and the wires are all there to do so. Its soooo nice, real versatile. Hope this helps...