my dad recently baught a new hu unit, but no new speakers, im planning on taking the bose hu and replacing it with the new one, can i install the new hu with the stock bose speakers? or will it cause any kind of interface or screeching noise when i do.... any suggestions or answers please help

 

I know the bose unit has a built in amplifier, but I think it is a pretty straight forward install (i have non bose so I never did it myself). do a search and you should be able to find a wiring diagram for the car, and just take it from there.