One thing that didn’t get mentioned is if he has a single speaker in front, then it is a weird shaped 5¼” or something to that effect (very narrow yet real long).
Another thing that didn’t get mentioned.
There are a lot of speakers that will fit the front of a dual (front) speaker car. The problem I see is all of the 3½” aftermarket speakers are all 4 Ohm units (except for one that I found on Amazon.com).
Until recently, all Mopars use an 8 Ohm speaker.
I have been told, over and over (and over and over), when I used to work for Chrysler (a long time ago), not to use 4 Ohm speakers, for it will kill the speaker drivers, in radio, each and every time.
Going by their word, I never tried to find out – but it makes sense.
Now with that said, I would guess that maybe 60% of the people reading this has installed 4 Ohm speakers and have been fine so far – so frankly, I’m not sure what to think.
NOS speakers have pretty much have all disappeared. Finding a “good” used 8 Ohm speaker is like finding a winning lottery ticket (very far and few between).
I did find some 8 Ohm 3½” speakers on Amazon.com, about 6 months ago, so I bought a few sets (for myself) to use. I hadn’t installed them yet but they will fit the hole.
A person can use a 4 Ohm resistor to turn a 4 Ohm speaker into an 8 Ohm one – but doing so cuts the volume down by half (or crank the tunes up by double) – but that never seemed like a good option to use.
Sense everyone is doing it, I would say go ahead and keep using the aftermarket 4 Ohm speakers with the factory radio, but keep in mind that (in my opinion only) that cranking the sound up could damage the radio.
If using an aftermarket radio then I see no issues with 4 Ohm speakers to begin with).
Also, if you are replacing the front single speaker (8 Ohm) with a pair of 4 Ohm speakers wired in series, should work nicely, as well.
Note: I have no firsthand experience with using 4 Ohm speakers on factory radios – only relaying what I heard from Chrysler – so please don’t send any flames my way.
Apparently they work.
BudW