I've been working on upgrading the factory speakers for the past few weeks off and on:
I got the SSL speakers from Fry's Electronics and the Boss ones online from MacMall - total cost was just under $60 for all 6 speakers. Shopping at Fry's is always kind of a nightmare but one of the redeeming factors is that you can listen to all of the speakers before buying. The only reason I had to order the 6" front door speakers online was because Fry's was somehow sold out of all 6" speakers.
I started by taking off the front door panels and removing the old, blown out factory 6" speakers. I cut the factory wire harness plug and crimped on new connectors. However, when I attach them to the new speakers and play music all I get is a very faint muffled version of the music, like the volume is very low and there is a lot of bass. From what I have been able to find by searching, this happens when the wiring or the amp is bad.
So, I decided to move on with the other speaker installs and worry about it latter.
Rear panels removed, 6x9" speakers installed:
I took this opportunity to remove the 3rd row seat belts because I don't ever plan on putting my 3rd row back in and it just looked kind of funny having the seat belts back there all by themselves. Plus, they kind of got in the way a little.
I also decided to remove the factory 10 disc CD changer because I know that I will never use it since there is a new stereo unit in the dash. It was funny because when my buddy and I were driving back from San Diego after purchasing the Montero we had a conversation as we were pulling up to the border patrol check point on the border of AZ/CA about what the odds were of the drug sniffing dogs finding something - sure enough, I found a homemade pipe underneath the CD Changer:
I decided to leave the cd changer bracket installed because it makes a handy little storage compartment that actually fits my shovel perfectly for now until I get an exterior carrier for it.
The front 4" knee speakers were much easier, even though removing the driver side knee panel is a royal PITA.
Out with the old:
So that's where things stand right now. My current plan is to go to the junkyard and get a replacement amp and see if that makes the front door speakers work. If not, then I know that I need new wiring run from the existing amp but I'm hoping that's not the case because from what I can tell, the wires plug into the amp with large wire harnesses that I would have to figure out how to tap into. If anyone has any advice on this, please let me know. I'm excited to get this done because my 33" KM2s ROAR pretty loud. Though the 4 new speakers already sound better than the 6 19 year old ones.
PS - If you ever have to do this job here is a list that really helped me with figuring out the wire polarity and in case these colors don't match up for you, it turned out that all of the negative wires were located on the bottom prong of the factory plug/harness:
Amplifier Output
Wire Function Colour Notes Fuse # Size Location
12V DC Battery Blue/yellow 5 10 Amp Relay box in engine compartment
Amplifier pins 2 & 10
Left Front Mid + Yellow/blue Pin 13 to front speaker & pin 5 to door speaker
Left Front Mid - Gray/blue Pin 14 to front speaker & pin 6 to door speaker
Right Front Mid + Yellow/red Pin 3 to front speaker & pin 15 to door speaker
Right Front Mid - Gray/red Pin 4 to front speaker & pin 16 to door speaker
Left Rear Mid + Yellow/blue
Left Rear Mid - Gray/blue
Right Rear Mid + Yellow/red
Right Rear Mid - Gray/red
Top
At Speakers
Wire Function Colour Notes Fuse # Size Location
Left Front Tweeter + White/blue
Left Front Tweeter - Black/blue
Right Front Tweeter + White/red
Right Front Tweeter - Black/red