BearmeatDC

I replaced all of the upgraded Alpine speakers, except the sub. I added a five channel amp. All of the speakers are 2 phm (2.3 to be exact, my installer tested them.) After much false information from installers that 2 ohm speakers are hard to find, I state for all 2 ohm speakers are easy to find at Best Buy or Crutchfield. The door speakers are 6x9 but you can also replace with 6.5 round ones. The Alpine door speakers are polymer woofers, so you have four woofers. That's why the Alpine system sounds so muted, the speaker built in cross over is only letting low notes play. So just replacing these with coaxial or triaxial speakers (my first step) will give you much better full range sound. The Alpine amp is sending full range sound thru the wires to the door speakers. Many may be happy at this step. the Alpine sub seemed fine after these steps. Next, I replaced the dash speakers. These are 3.5" round at least 42mm deep paper cone speakers. The Alpine amp is programmed oddly, on YouTube a guy posted the frequency response as a video from his testing bench. After replacing all of the speakers, it seemed to me that portions of the mid range sound range were missing. But I am picky. So I replaced the Alpine amp. The Alpine amp is not adjustable by the user. I did get a full range of frequencies after this. The new amp is 1000 watts. The Alpine sub is taking about about 300 watts now (the Alpine amp only put out 368 watts for all the speakers) and doing fine. I may yet replace it since I have come so far. It is ok but not really covering the deepest notes. I like dance music. A bass should sound guitar like in that you can hear the notes change not just thump thump thump. It took me forever to gather the above information. The only thing I do not know, is the size of the sub. I am guessing 8" but it could be 6". It is in a special sub box, elsewhere I have posted a picture from the Alpine website Dodge page. I hope this helps folks.

I have no idea if they had to run a power cable or if they used the former factory amp power cable. The new amp is 1000 watts, five channels. The new amp is in the compartment in the cargo area by the lift gate, in the floor.

The dash speakers are standard 3.5" speakers and can be at least 42mm deep. Just replaced them in my 2015 Journey.

I replaced all of the upgraded Alpine speakers, except the sub. I added a five channel amp. All of the speakers are 2 phm (2.3 to be exact, my installer tested them.) After much false information from installers that 2 ohm speakers are hard to find, I state for all 2 ohm speakers are easy to find at Best Buy or Crutchfield. The door speakers are 6x9 but you can also replace with 6.5 round ones. The Alpine door speakers are polymer woofers, so you have four woofers. That's why the Alpine system sounds so muted, the speaker built in cross over is only letting low notes play. So just replacing these with coaxial or triaxial speakers (my first step) will give you much better full range sound. The Alpine amp is sending full range sound thru the wires to the door speakers. Many may be happy at this step. the Alpine sub seemed fine after these steps. Next, I replaced the dash speakers. These are 3.5" round at least 42mm deep paper cone speakers. The Alpine amp is programmed oddly, on YouTube a guy posted the frequency response as a video from his testing bench. After replacing all of the speakers, it seemed to me that portions of the mid range sound range were missing. But I am picky. So I replaced the Alpine amp. The Alpine amp is not adjustable by the user. I did get a full range of frequencies after this. The new amp is 1000 watts. The Alpine sub is taking about about 300 watts now (the Alpine amp only put out 368 watts for all the speakers) and doing fine. I may yet replace it since I have come so far. It is ok but not really covering the deepest notes. I like dance music. A bass should sound guitar like in that you can hear the notes change not just thump thump thump. It took me forever to gather the above information. The only thing I do not know, is the size of the sub. I am guessing 8" but it could be 6". It is in a special sub box, elsewhere I have posted a picture from the Alpine website Dodge page. I hope this helps folks.

The dash speakers are standard 3.5" speakers and can be at least 42mm deep. Just replaced them in my 2015 Journey.

I replaced the dash speakers with JBL GTO329 3.5" diamater 1.5" deep coaxial speakers. These, along with a new aftermarket amp have served to address all of the issues I had. I left the Alpine sub in place and it sounds great. Sirius sounds fantastic (I listen to Sirius a lot.)

Having spent weeks diving into the system, it simply has a silly design and is worse than the stock system. It is designed with the four door speakers serving as woofers with low pass filters on these speakers. There is a subwoofer in the cargo area. The two dash speakers have high pass filters. It sounds like a muffled hot mess. Folks in the 2nd or 3rd row seats will hear only muffled rumbling, not any sense of music. Sirius is unlistenable it simply sounds horrible. I got the upgrade as it is easier to get aftermarket gear if you do so. How can Dodge claim it meets their standards as well as those from Alpine with any semblance of a straight face? On Alpine's Dodge site, some photos show five of the dash speakers suggesting along the way three were deleted from other locations. Replacing the door speakers with triaxel speakers greatly improved the sound. The amp has no on board controls nor is there a way for the consumer to change the firmware. The subwoofer feed needs to have some db increase. Trying to find out the dimensions of the dash speakers is fruitless (I will waste time and money with an installer to finally figure out the size of the dash speakers and promise to share, take that keeper of the secret dash speaker size.) Alpine should be embarrassed its name is associated with this very subpar system.

Jumping off a cliff. Ordered JBL GX 303 3.5" coaxial speakers for the dash. The diameter for install is @3.1" and the mounting depth is just under 1.5" the shallowest one I could find at the 3.5" size. They are 2.3 ohm so they will match the ones being removed. Stay tuned.

I bet you are the one who replaced the dash speakers. Am I correct? If so any insight as to the depth available for a replacement speaker? Also, thank you for the amp insight. I suspect replacement of the factory amp is in my future. I would venture to say most folks would be happy with just new door speakers. The system sounds pretty damn good now, but I am a audio guy and in my case the system is just not where I want it to be to make me happy.