So my battery recently died, and the stock head unit reset itself and prompted me for the radio code. So instead of getting the code, I'm deciding to buy a new head unit altogether. But upon further research, it seems as if some head units do not work with the acoustic feedback system. Anyone know any relatively cheap head units (~100-150 dollars) that i would be able to install just like any other car and would still work without bypassing the acoustic feedback system? Its a 2001 sh if it matters. Thanks!