no you would not need an amp to install any other headunit.
the A3 does come with a sub and amp both on Bose and non Bose versions. the difference is that the speakers in the Bose systems are better and are fully amped (all speakers power off the amp in the boot) and the standard systems are half amped (rear speakers are amped while fronts are wired directly to headunit)
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.