stereo build question

[andrew96]

HI all. So i have 2003 a4 non-bose symphony II and want to upgrade the stereo. i was planning on doing a full swap...new door speakers with a 4 channel amp, touch screen radio with rear view camera and new sub with its own amp. the Non-bose only has an amp for the sub and 2 rear doors, not the front doors. After more research i realized i should be wiring in tweeters along with the mids and front center speakers on the dash.... so i was thinking, would i be able to bypass the current amp for the rear door speakers and wire all current door speakers, tweeters, and dash speakers to an aftermarket amp so i can run power to front and rear doors? I'd like to keep the current speakers but they are not loud enough with windows down haha!

thanks!

[naiku]

Yes, just bypass that factory amp and use your new 4 channel amp to power the door speakers. Disconnect the center dash speaker entirely, it's tiny (about 1.5" across) and not worth using unless you have a DSP that can handle surround duties (JBL MS8 or Alpine H800 are the only 2 that can handle it). Assuming you will have component speakers, they will come with crossovers that you need to mount somewhere.