Hey i have a 99 rx 300 I'm trying to build a custom system in it but i can't find the factory amp.If anyone can help me please contact me at necolittle@yahoo.com
hey my name is nick the box under the seat is the subwoofer.It is powered if u unbolt the passenger seat you will be able to get to it.I just bought my rx 300 so i haven't had a chance to find the factory amp yet.