The CD player on my wife's corolla has died (working as a radio only). Any ideas on where to get a new head unit and a powered sub installed? I'm just going to leave the stock speakers because I think they'll be fine once they don't have to handle any bass. Is the normal idea to buy the kit you want and then get an auto-electrician to install? I'm getting somebody else to do the install due to my inability to not break bits of plastic..