Rear Door Speaker Install

dirtfan21 · September 15, 2011

I just installed Infinity 6 3/4's in the front doors replacing the factory speakers and after hearing them would like to do the same in the rear. I have read many threads stating that the same 6 3/4's will also fit in the rear. I searched up and down to find install threads on this subject and found the one I needed, to bad the link to his write up no longer works.

My question is, does anyone sell an adapter for the ext cab doors or is this strictly a fab yourself type of deal. If I must fab adapters myself can you all give me some hints, pictures of install, etc, to help me on my way.

Much appreciated!

aesalazar · September 16, 2011

I searched for adapters for the rears but never came across any when I upgraded my system. I ended up not using the rears anyway so it didnt matter much.

This guy went with 4x6s in the rear but he really didnt do anything to seal the front of the speaker from there rear. Dont think you will get much bass from it but then again there probably wasn't much to be had in the first place being that they are so small.

http://www.j-body.org/forums/read.php?f=4&...92&t=156586

This guys made a bracket for his fronts out of MDF but doing it for the rears would be a similar concept:

https://picasaweb.google.com/lh/view?q=2008...129433931660738

Good luck.

Ernie

Jeff405 · September 20, 2011

You can make plates out of wood or....

What I did for the front and rear, was cut the factory speaker out of the plastic bracket/speaker assembly with a drimel tool. You have to do alot of cutting and trimming, but it works. So your pretty much destroying your factory speakers to make your own brackets for your new speakers. If you do that, theres no turning back. I have pics but will have to dig them up, so PM me if you want me to post em.

I used Infinity Kappa 62.9i speakers in the front and rear. If these are what you are using, STOP NOW. You will need an amp to push all 4 speakers, the factory radio won't do it alone. Well, it will, but will sound like total crap and you will end up with your stereo adjusted to only play the front 2 speakers untill you buy an amp.

So think about it before you do as I did. If you end up mounting the rears speakers some other way and want to get rid of your factory rears, let me know please.

jdubya · September 20, 2011

They do not make an adapter for the rear on the extended cabs you will have to make them yourself. I used a 1/4" thick piece of ABS plastic which worked great.