2006 Double Cab JBL Upgrade - Do I have everything?

My 2006 double cab with the factory JBL system needs (more of) an upgrade. Currently I have a Kenwood DDX 6706S head unit installed with Power Bass 2 ohm speakers in the front doors while still using the factory JBL amp behind the rear seat. It isn't too impressive and I feel the whole system should be updated except for the Kenwood Head unit. I'm looking to upgrade from 2 ohm to 4 ohm. I don't need an earth rattling system; just looking for a well rounded, full sound. My steering wheel controls still work so I believe an adapter was used when the head unit was installed. Does that sound correct?

I plan on doing the install myself to save some money. I'm ordering from Crutchfield and just wanted to make sure I'm not missing anything.

My purchase list includes the following:
-

$33 Metra 70-8117 Factory Amplifier Harness for 2004-Up Toyota Vehicles with JBL Sound System

Metra 70-8117 Amp Bypass Harness
- Front doors: 6 3/4" Kenwood KFC 1796PS 2 way speakers (includes Metra 82-8153 mounting brackets and Metra 72-9301 wiring harness)
- Rear Doors: 6 1/2" Kenwood KFC 1696PS 2 way speakers (includes Scosche SAT 6 mounting brackets and

$13 Metra 72-8104 Speaker Wire Adapters for Select Toyota Vehicles - 4 Total Adapters

Metra 72-8104 wiring harness)
- Subwoofer (will purchase on Amazon): Kenwood KSC-SW11 to go in the rear under seat compartment on the passenger side

I plan on powering the door speakers from the head unit. The sub itself is powered so no need for an amp.

I'm on the fence about the front door speakers. Should I go with components? Will they give me a little more low end? I'm concerned with having to modify spaces to make certain tweeters fit though. How much more complicated is the wiring when installing crossovers/tweeters?

If I don't go with components up front, what do I do with the stock tweeters? Leave them sitting there disconnected? I'm guessing they can't be reused once everything else is 4 ohm.

Is there anything else needed for this installation? For DIY, how involved is all of this? Is the wiring plug and play? For those that have already been down this road, any tips/tricks or recommendations?

 

I think you're pretty much covered, although I'd switch to components up front. Don't worry about the install. Ordering from Crutchfield is a wise move. They can help every step of the way. You can also check in here and I'll answer any questions you might have.

 

Awesome, thanks! Super helpful of you. I'll definitely be coming here for some insight.

 

You don't need to come here. Just think it and I'll know exactly what you need.

 

Uhhhh, what are you talking about?

 

You mean what are we talking about.

 

I'm confused. What's going on?

 

Forget something today? Something like a little pill that helps us remain sane.

 

Dammit. Yup. I gotta go.

 

Well, I read this thread at least lol. I'm researching what sizes are needed for a 1st gen. And that subwoofer fits under the back seat?

 

AI

 

I originally wrote driver side but corrected my post to passenger side.

Based on the picture below, @weadjust fit the KSC-SW11 in the rear passenger side under seat compartment in a 2006 double cab.

 

Sweet. This is good info. Thanks!