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Customer Reviews

PAC AmpPRO AP4-CH31 Aftermarket Amplifier Interface

Allows seamless addition of an amplifier in select 2010-up Chrysler-made vehicles

MFR # AP4-CH31

PAC AmpPRO AP4-CH31 Aftermarket Amplifier Interface

PAC AmpPRO AP4-CH31 Aftermarket Amplifier Interface

Allows seamless addition of an amplifier in select 2010-up Chrysler-made vehicles

MFR # AP4-CH31

4 reviews
View this product

Works perfect for me

Crutchfield customer from Wind Gap, PA on 3/6/2020

2018 Dodge Journey

Verified customer (What's this?)
Verified employee purchase (What's this?)

Worked perfectly in my 2018 Dodge Journey with Alpine System. You can't even tell I changed anything, except the much better sound.

Pros: Straightforward install Cable to unit was long enough to leave it accessible for updating, changing cables.

Cons: None

Crutchfield response on

0 of 0 found this helpful

PAC AmpPRO AP4-CH31 Aftermarket Amplifier Interface

HARRY from Plymouth, MN on 2/14/2018

2012 Chrysler 300

Verified customer (What's this?)
Verified employee purchase (What's this?)

Nice piece of engineering. I very glad I bought the Ampro, the fact that most newer cars won't allow you upgrade the head unit leaves something to be desired. Being able to eliminate the need for high level outs from the head unit makes balancing your system easier IMO. Flat signal = No headaches, added the Toslink And clean is the only signal being sent! [cloud nine].

Pros: Eliminates aftermarket Amp roll offs giving you a flat signal. [The best place to start]. Removes the "Awww I got to keep the head unit blues" and allows a true beginning to a great aftermarket build!

Cons: If I find one ....I'll let you know.

Crutchfield response on

0 of 0 found this helpful

PAC AmpPRO AP4-CH31 Aftermarket Amplifier Interface

Carl from Shrewsbury ma on 9/20/2017

Verified customer (What's this?)
Verified employee purchase (What's this?)

This is a continuation from my last review because I forgot to mention something. The manual does not suggest this (but it really should) if you use the amp turn on lead (the blue wire) an inline fuse should be added. For an extra 2 bucks it will protect a very expensive head unit from being spiked.

Pros: Everything

Cons: None

Crutchfield response on

2 of 2 found this helpful

Awesome!

Carl from Shrewsbury, MA on 7/12/2017

Verified customer (What's this?)
Verified employee purchase (What's this?)

Highly recommend! I own a 2013 Dodge Charger, and this module works perfectly! Super easy to install, and no motor/interference noise what so ever! Worth every penny, and my car sounds mint now!

Pros: Exceeded my expectations!

Cons: none!

Crutchfield response on

0 of 0 found this helpful

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