Added a sub and amp to the Bose system

[Evo2speed3]

I just installed a Rockford Fosgate P3 12" sub box and Precision Power Sedona 850x1 amp to the stock Bose system in my 2013 Speed3. It was so easy to do with the tips from this forum. I used a Rockford 4ga wiring kit and a PAC AOEM2 loc. Took a couple of hours for the install. It hits so hard even with the bass at 0 on the stock head unit. I'm very impressed so far.

[Thetal1]

Are you planning on upgrading the door speakers?

[Evo2speed3]

Maybe down the road. The highs are decent, but they can't keep up with all of that bass. If I do, I will upgrade the Bose amp too.

[Thetal1]

Originally Posted by Evo2speed3 Maybe down the road. The highs are decent, but they can't keep up with all of that bass. If I do, I will upgrade the Bose amp too.

I was thinking the same thing once I put my sub in but after a few months it sounded blah just really bass heavy. I was going to upgrade the amp but I am doing the doors first. Probably some jbl components of infinity since they match the ohm of the factory speakers.

[Evo2speed3]

I am not sure what highs I want to go with. I used to like Boston Acoustics, Focal, and MB Quart in my previous stereos back in the 90's. I'm not sure what's decent anymore.

Here's a link to my review of this sub box on Crutchfield. (Same user name)
Rockford Fosgate P3-1X12 Punch P3 ported enclosure with 12" sub at Crutchfield.com

[Thetal1]

there was another speed owner who wrote a review on the sub. sounds like its pretty good. im surprised you said it was better than the sundown sub. i have always wanted to go with a more competition sub just so i can see what its all about but i dont have the means of making a custom box for them.

[smurfspeed3]

I know its been a few months since you did the install but where did you run the power wire through? I most likely missed the thread where someone talks about this but i have a DC audio sub that I am dying to install all ready and haven't really found a clear answer.

[Jhaupfear]

Behind the glove box, in the firewall, there is a plastic or rubber cap a couple of inches wide. Im assuming this was for the steering column in the left side drive models. Pop it out, drill a hole, grommet if you want, and run wire down pass. Side door molding. There is a writeup on here with pictures somewhere

[smurfspeed3]

Originally Posted by Jhaupfear Behind the glove box, in the firewall, there is a plastic or rubber cap a couple of inches wide. Im assuming this was for the steering column in the left side drive models. Pop it out, drill a hole, grommet if you want, and run wire down pass. Side door molding. There is a writeup on here with pictures somewhere

I actually just found it haha. Thanks for answering so quickly though! I just got my ms3 a few weeks ago and miss the bass that i had before i sold my truck and took the sub out.

[Jhaupfear]

No prob. Listen to this guy about the PAC AOEM2 loc. Its the only way to go, I tried multiple options before i got that and was never happy with the output. Bose or not, use that PAC AOEM2 loc.

[bruce_G]

it sounds so great to upgrade a sub and amp, I'd like to add it to my car too, hope it works perfectly.

[ajw85]

It looks like there are only 4 outputs on the loc, what do you do if you want to run an amp on the door speakers and a sub?

[smurfspeed3]

Originally Posted by ajw85 It looks like there are only 4 outputs on the loc, what do you do if you want to run an amp on the door speakers and a sub?

You use one set of outputs for the sub amp and the other pair of outputs for the speaker amp. It tells you on the loc which output is for front and rear.