I have a 2002 toyota 4runner limited. I would like to upgrade the speakers. I bought a set of Polk Audio DB 6500 (6.5 inch). I don't know how to get them to fit in my front door speakers. I also bought Polk Audio DB 525 (5.25 inch) The speaker is too deep to fit into the stock rear speaker door space. What should I do to make it fit. I would also like to add an amp. I don't want to change my factory stereo. Is there a built in amp under the passenger seat? Do I have to remove it to put in another amp? Please help.
Thomas
Thomas