Is it possible to install a Bose sound system in a Toyota Highlander? If so, how much would it cost?
Sure, anything is possible with the right amount of money. I know Toyota's OEM system is JBL, but I can't give you costs, so you'll have to research the parts you want to put into your vehicle. (Headunit, speakers and amps.) Then add the install price if your not doing it yourself. Contact your local auto audio installer for estimates.